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Clarke, J. P., Wegg, C., Gerhard, O., Smith, L. C., Lucas, P. W., Wylie, S. M., 2019, submitted to MNRAS
The Milky Way bar/bulge in proper motions: a 3D view from VIRAC & Gaia. 2019arXiv190302003C

Wegg, C., Gerhard, O., Bieth, M., 2019, MNRAS, 485, 3296,
The gravitational force field of the Galaxy measured from the kinematics of RR Lyrae in Gaia. 2019MNRAS.485.3296W

Bhattacharya, S., Arnaboldi, M., Hartke, J., Gerhard, O., Comte, V., McConnachie, A., et al., 2019, A&A, 624, A132
The survey of planetary nebulae in Andromeda (M 31). I. Imaging the disc and halo with MegaCam at the CFHT. 2019A&A...624...A132

Khoperskov, S., Di Matteo, P., Gerhard, O., Katz, D., Haywood, M., Combes, F., et al., 2019, A&A, 622, L6,
The echo of the bar buckling: Phase-space spirals in Gaia Data Release 2. 2019A&A...622L...6K


Blaña Díaz, M., Gerhard, O., Wegg, C., Portail, M., Opitsch, M., Saglia, R., et al., 2018, MNRAS, 481, 3210,
Sculpting Andromeda - made-to-measure models for M31's bar and composite bulge: dynamics, stellar and dark matter mass. 2018MNRAS.481.3210B

Monari, G., Famaey, B., Siebert, A., Wegg, C., Gerhard, O., 2018, submitted to A&A
The signatures of the outer Lindblad resonance and corotation of a large Galactic bar in local velocity space. 2018arXiv181204151M

Longobardi, A., Arnaboldi, M., Gerhard, O., Pulsoni, C., Söldner-Rembold, I., 2018, A&A, 620, A111,
Kinematics of the outer halo of M 87 as mapped by planetary nebulae. 2018A&A...620A.111L

Pulsoni, C., Gerhard, O., Arnaboldi, M., Coccato, L., Longobardi, A., Napolitano, N. R., et al., 2018, A&A, 618, A94,
The extended Planetary Nebula Spectrograph (ePN.S) early-type galaxy survey: The kinematic diversity of stellar halos and the relation between halo transition scale and stellar mass. 2018A&A...618A..94P

Aniyan, S., Freeman, K. C., Arnaboldi, M., Gerhard, O. E., Coccato, L., Fabricius, M., et al., 2018, MNRAS, 476, 1909
Resolving the disc-halo degeneracy - I: a look at NGC 628. 2018MNRAS.476.1909A

Barbuy, B., Chiappini, C., Gerhard, O., 2018, ARA&A, 56, 223,
Chemodynamical History of the Galactic Bulge. 2018ARA&A..56..223B

Hartke, J., Arnaboldi, M., Gerhard, O., Agnello, A., Longobardi, A., Coccato, L., et al. 2018, A&A, 616, A123.
Three dynamically distinct stellar populations in the halo of M49. 2018A&ampA..616..A123

Saglia, R. P., Opitsch, M., Fabricius, M. H., Bender, R., Blaña, M., Gerhard, O., 2018, A&A, 618, A156
Stellar populations of the central region of M 31. 2018A&A...618A..A156

Barbosa, C. E., Arnaboldi, M., Coccato, L., Gerhard, O., Mendes de Oliveira, C., Hilker, M., et al., 2018, A&A, 609, A78
Sloshing in its cD halo: MUSE kinematics of the central galaxy NGC 3311 in the Hydra I cluster. 2018A&A...609A..78B

Gerhard, O., 2018, IAUS, 334, 73
The barred inner Milky Way: dynamical models from surveys. 2018IAUS..334...73G


Portail M., Wegg C., Gerhard O., Ness M., 2017, MNRAS, 470, 1233
Chemodynamical Modelling of the Galactic Bulge and Bar 2017MNRAS.470.1233P

Hartke, J., Arnaboldi, M., Longobardi, A., Gerhard, O., Freeman, K. C., Okamura, S., et al., 2017, A&A, 603, A104,
The halo of M 49 and its environment as traced by planetary nebulae populations. 2017A&A..603..A104

Wegg, C., Gerhard, O., Portail, M., 2017, ApJ, 843, L5
The Initial Mass Function of the Inner Galaxy Measured from OGLE-III Microlensing Timescales. 2017ApJ...843L...5W

Pérez-Villegas A., Portail M., Wegg C., Gerhard O., 2017, ApJ, 840, L2
Revisiting the Tale of Hercules: how stars orbiting the Lagrange points visit the Sun 2017ApJ...840L...2P

Blaña Díaz M., Wegg C., Gerhard O.,  Erwin P., Portail M., Opitsch M., Saglia R., Bender, R., 2017, MNRAS, 466, 4279
Andromeda chained to the Box - Dynamical Models for M31: Bulge & Bar 2017MNRAS.466.4279B

Portail M., Gerhard O., Wegg C., Ness M., 2017, MNRAS, 465, 1621
Dynamical Modelling of the Galactic Bulge and Bar: Pattern Speed, Stellar, and Dark Matter Mass Distributions2017MNRAS.465.1621P

Pérez-Villegas A., Portail M., Gerhard O., 2017, MNRAS, 464, L80
The Stellar Halo in the Inner Milky Way: Predicted Shape and Kinematics2017MNRAS.464L..80P

Arnaboldi, M., Pulsoni, C., Gerhard, O., PN. S Consortium, 2017, IAUS, 323, 279
The PN.S ETG survey. 2017IAUS..323..279A


Bland-Hawthorn, J., Gerhard, O., 2016, ARA&A, 54, 529
The Galaxy in Context: Structural, Kinematic, and Integrated Properties. 2016ARA&A..54..529B

Wegg C., Gerhard O., Portail M., 2016, MNRAS, 463, 557
MOA-II Galactic Microlensing Constraints: The Inner Milky Way has a Low Dark Matter Fraction and a Near Maximal Disk. 2016MNRAS.463..557W

Saha, K., Gerhard, O., Martinez-Valpuesta, I.,  2016, A&A, 588, A42
Spin-up of massive classical bulges during secular evolution2016MNRAS.463L..41B

Li Z., Gerhard O., Shen J., Portail M., Wegg C., 2016, ApJ, 824, 11
Gas dynamics in the Milky Way: a low pattern speed model. 2016ApJ...824...13L

Fritz T. K., Chatzopoulos S., Gerhard O., Gillessen S., Genzel R., Pfuhl O., Tacchella S., Eisenhauer F., Ott T., 2016, ApJ, 821, 44,
The Nuclear Cluster of the Milky Way: Total Mass and Luminosity. 2016ApJ...821...44F

Aniyan S., Freeman K. C., Gerhard O. E., Arnaboldi M., Flynn C., 2015, MNRAS, 456, 1484,
The influence of a kinematically cold young component on disc-halo decompositions in spiral galaxies: insights from solar neighbourhood K-giants. 2016MNRAS.456.1484A

Arnaboldi, M., Longobardi, A., Gerhard, O., 2016, IAUS, 317, 69
Planetary Nebulae and their parent stellar populations. Tracing the mass assembly of M87 and Intracluster light in the Virgo cluster core. 2016IAUS..317...69A

Gerhard, O., 2016, IAUS, 317, 266
The Milky Way, the Galactic Halo, and the Halos of Galaxies. 2016IAUS..317..266G


Chatzopoulos, S., Gerhard, O., Fritz, T. K., Wegg, C., Gillessen, S., Pfuhl, O., et al.,  2015,  MNRAS,  453,  939,   
Dust within the nuclear star cluster in the Milky Way. 2015MNRAS.453..939C

Wegg, C., Gerhard, O., Portail, M.,  2015,  MNRAS,  450,  4050,   
The structure of the Milky Way's bar outside the bulge. 2015MNRAS.450.4050W

Longobardi, A., Arnaboldi, M., Gerhard, O., Mihos, J. C.,  2015,  A&A,  579,  L3,   
The build-up of the cD halo of M 87: evidence for accretion in the last Gyr. 2015A&A...579L...3L

Longobardi, A., Arnaboldi, M., Gerhard, O., Hanuschik, R.,  2015,  A&A,  579,  A135,   
The outer regions of the giant Virgo galaxy M 87 Kinematic separation of stellar halo and intracluster light. 2015A&A...579A.135L

Portail, M., Wegg, C., Gerhard, O.,  2015,  MNRAS,  450,  L66,   
Peanuts, brezels and bananas: food for thought on the orbital structure of the Galactic bulge. 2015MNRAS.450L..66P

Krause, M. G. H., Diehl, R., Bagetakos, Y., Brinks, E., Burkert, A., Gerhard, O., et al.,  2015,  A&A,  578,  A113,   
26Al kinematics: superbubbles following the spiral arms?. Constraints from the statistics of star clusters and HI supershells. 2015A&A...578A.113K

Portail, M., Wegg, C., Gerhard, O., Martinez-Valpuesta, I.,  2015,  MNRAS,  448,  713,   
Made-to-measure models of the Galactic box/peanut bulge: stellar and total mass in the bulge region. 2015MNRAS.448..713P

Chatzopoulos, S., Fritz, T. K., Gerhard, O., Gillessen, S., Wegg, C., Genzel, R., et al.,  2015,  MNRAS,  447,  948,   
The old nuclear star cluster in the Milky Way: dynamics, mass, statistical parallax, and black hole mass. 2015MNRAS.447..948C


Urrutia-Viscarra, F., Arnaboldi, M., Mendes de Oliveira, C., Gerhard, O., Torres-Flores, S., Carrasco, E. R., et al.,  2014,  A&A,  569,  A97,   
A census of Hα emitters in the intergalactic medium of the NGC 2865 system. 2014A&A...569A..97U

Wu, X., Gerhard, O., Naab, T., Oser, L., Martinez-Valpuesta, I., Hilz, M., et al.,  2014,  MNRAS,  438,  2701,   
The mass and angular momentum distribution of simulated massive early-type galaxies to large radii. 2014MNRAS.438.2701W


Coccato, L., Arnaboldi, M., Gerhard, O.,  2013,  MNRAS,  436,  1322,   
Signatures of accretion events in the haloes of early-type galaxies from comparing PNe and GCs kinematics. 2013MNRAS.436.1322C

Wegg, C., Gerhard, O.,  2013,  MNRAS,  435,  1874,   
Mapping the three-dimensional density of the Galactic bulge with VVV red clump stars. 2013MNRAS.435.1874W

Kordopatis, G., Gilmore, G., Steinmetz, M., Boeche, C., Seabroke, G. M., Siebert, A., et al.,  2013,  AJ,  146,  134,   
The Radial Velocity Experiment (RAVE): Fourth Data Release. 2013AJ....146..134K

Kretschmer, K., Diehl, R., Krause, M., Burkert, A., Fierlinger, K., Gerhard, O., et al.,  2013,  A&A,  559,  A99,   
Kinematics of massive star ejecta in the Milky Way as traced by 26Al. 2013A&A...559A..99K

Longobardi, A., Arnaboldi, M., Gerhard, O., Coccato, L., Okamura, S., Freeman, K. C.,  2013,  A&A,  558,  A42,   
The planetary nebula population in the halo of M 87. 2013A&A...558A..42L

Cortesi, A., Merrifield, M. R., Coccato, L., Arnaboldi, M., Gerhard, O., Bamford, S., et al.,  2013,  MNRAS,  432,  1010,   
Planetary Nebula Spectrograph survey of S0 galaxy kinematics - II. Clues to the origins of S0 galaxies. 2013MNRAS.432.1010C

Morganti, L., Gerhard, O., Coccato, L., Martinez-Valpuesta, I., Arnaboldi, M.,  2013,  MNRAS,  431,  3570,   
Elliptical galaxies with rapidly decreasing velocity dispersion profiles: NMAGIC models and dark halo parameter estimates for NGC 4494. 2013MNRAS.431.3570M

Saha, K., Gerhard, O.,  2013,  MNRAS,  430,  2039,   
Secular evolution and cylindrical rotation in boxy/peanut bulges: impact of initially rotating classical bulges. 2013MNRAS.430.2039S

De Lorenzi, F., Hartmann, M., Debattista, V. P., Seth, A. C., Gerhard, O.,  2013,  MNRAS,  429,  2974,   
Three-integral multicomponent dynamical models and simulations of the nuclear star cluster in NGC 4244. 2013MNRAS.429.2974D

Martinez-Valpuesta, I., Gerhard, O.,  2013,  ApJ,  766,  L3,   
Metallicity Gradients Through Disk Instability: A Simple Model for the Milky Way's Boxy Bulge. 2013ApJ...766L...3M

Ulubay-Siddiki, A., Bartko, H., Gerhard, O.,  2013,  MNRAS,  428,  1986,   
On the possibility of a warped disc origin of the inclined stellar discs at the Galactic Centre. 2013MNRAS.428.1986U

Cortesi, A., Arnaboldi, M., Coccato, L., Merrifield, M. R., Gerhard, O., Bamford, S., et al.,  2013,  A&A,  549,  A115,   
The Planetary Nebula Spectrograph survey of S0 galaxy kinematics. Data and overview. 2013A&A...549A.115C


Arnaboldi, M., Ventimiglia, G., Iodice, E., Gerhard, O., Coccato, L.,  2012,  A&A,  545,  A37,   
A tale of two tails and an off-centered envelope: diffuse light around the cD galaxy NGC 3311 in the Hydra I cluster. 2012A&A...545A..37A

Nidever, D. L., Zasowski, G., Majewski, S. R., Bird, J., Robin, A. C., Martinez-Valpuesta, I., et al.,  2012,  ApJ,  755,  L25,   
The Apache Point Observatory Galactic Evolution Experiment: First Detection of High-velocity Milky Way Bar Stars. 2012ApJ...755L..25N

Lyskova, N., Churazov, E., Zhuravleva, I., Naab, T., Oser, L., Gerhard, O., et al.,  2012,  MNRAS,  423,  1813,   
Testing a simple recipe for estimating galaxy masses from minimal observational data. 2012MNRAS.423.1813L

Morganti, L., Gerhard, O.,  2012,  MNRAS,  422,  1571,   
Regularizing made-to-measure particle models of galaxies. 2012MNRAS.422.1571M

Saha, K., Martinez-Valpuesta, I., Gerhard, O.,  2012,  MNRAS,  421,  333,   
Spin-up of low-mass classical bulges in barred galaxies. 2012MNRAS.421..333S

McNeil-Moylan, E. K., Freeman, K. C., Arnaboldi, M., Gerhard, O. E.,  2012,  A&A,  539,  A11,   
Planetary nebula kinematics in NGC 1316: a young Sombrero. 2012A&A...539A..11M

Gerhard, O., Martinez-Valpuesta, I.,  2012,  ApJ,  744,  L8,   
The Inner Galactic Bulge: Evidence for a Nuclear Bar?. 2012ApJ...744L...8G


Coccato, L., Gerhard, O., Arnaboldi, M., Ventimiglia, G.,  2011,  A&A,  533,  A138,   
Stellar population and the origin of intra-cluster stars around brightest cluster galaxies: the case of NGC 3311. 2011A&A...533A.138C

Das, P., Gerhard, O., Mendez, R. H., Teodorescu, A. M., de Lorenzi, F.,  2011,  MNRAS,  415,  1244,   
Using NMAGIC to probe the dark matter halo and orbital structure of the X-ray bright, massive elliptical galaxy, NGC 4649. 2011MNRAS.415.1244D

Teodorescu, A. M., Méndez, R. H., Bernardi, F., Thomas, J., Das, P., Gerhard, O.,  2011,  ApJ,  736,  65,   
Planetary Nebulae in the Elliptical Galaxy NGC 4649 (M 60): Kinematics and Distance Redetermination. 2011ApJ...736...65T

Spavone, M., Iodice, E., Arnaboldi, M., Longo, G., Gerhard, O.,  2011,  A&A,  531,  A21,   
Chemical abundances of the PRGs UGC 7576 and UGC 9796. I. Testing the formation scenario. 2011A&A...531A..21S

Cortesi, A., Merrifield, M. R., Arnaboldi, M., Gerhard, O., Martinez-Valpuesta, I., Saha, K., et al.,  2011,  MNRAS,  414,  642,   
Unravelling the origins of S0 galaxies using maximum likelihood analysis of planetary nebulae kinematics. 2011MNRAS.414..642C

Martinez-Valpuesta, I., Gerhard, O.,  2011,  ApJ,  734,  L20,   
Unifying A Boxy Bulge and Planar Long Bar in the Milky Way. 2011ApJ...734L..20M

Siebert, A., Williams, M. E. K., Siviero, A., Reid, W., Boeche, C., Steinmetz, M., et al.,  2011,  AJ,  141,  187,   
The RAdial Velocity Experiment (RAVE): Third Data Release. 2011AJ....141..187S

Ventimiglia, G., Arnaboldi, M., Gerhard, O.,  2011,  A&A,  528,  A24,   
The unmixed kinematics and origins of diffuse stellar light in the core of the Hydra I cluster (Abell 1060). 2011A&A...528A..24V

Napolitano, N. R., Romanowsky, A. J., Capaccioli, M., Douglas, N. G., Arnaboldi, M., Coccato, L., et al.,  2011,  MNRAS,  411,  2035,   
The PN.S Elliptical Galaxy Survey: a standard ΛCDM halo around NGC 4374?. 2011MNRAS.411.2035N


Das, P., Gerhard, O., Churazov, E., Zhuravleva, I.,  2010,  MNRAS,  409,  1362,   
Steepening mass profiles, dark matter and environment of X-ray bright elliptical galaxies. 2010MNRAS.409.1362D

Coccato, L., Gerhard, O., Arnaboldi, M.,  2010,  MNRAS,  407,  L26,   
Distinct core and halo stellar populations and the formation history of the bright Coma cluster early-type galaxy NGC 4889. 2010MNRAS.407L..26C

Ventimiglia, G., Gerhard, O., Arnaboldi, M., Coccato, L.,  2010,  A&A,  520,  L9,   
The dynamically hot stellar halo around NGC 3311: a small cluster-dominated central galaxy. 2010A&A...520L...9V

Coccato, L., Arnaboldi, M., Gerhard, O., Freeman, K. C., Ventimiglia, G., Yasuda, N.,  2010,  A&A,  519,  A95,   
Kinematics and line strength indices in the halos of the Coma brightest cluster galaxies NGC 4874 and NGC 4889. 2010A&A...519A..95C

McNeil, E. K., Arnaboldi, M., Freeman, K. C., Gerhard, O. E., Coccato, L., Das, P.,  2010,  A&A,  518,  A44,   
Counter-dispersed slitless-spectroscopy technique: planetary nebula velocities in the halo of NGC 1399. 2010A&A...518A..44M

Churazov, E., Tremaine, S., Forman, W., Gerhard, O., Das, P., Vikhlinin, A., et al.,  2010,  MNRAS,  404,  1165,   
Comparison of approximately isothermal gravitational potentials of elliptical galaxies based on X-ray and optical data. 2010MNRAS.404.1165C

Spavone, M., Iodice, E., Arnaboldi, M., Gerhard, O., Saglia, R., Longo, G.,  2010,  ApJ,  714,  1081,   
Chemical Abundances in the Polar Disk of NGC 4650A: Implications for Cold Accretion Scenario. 2010ApJ...714.1081S

Bartko, H., Martins, F., Trippe, S., Fritz, T. K., Genzel, R., Ott, T., et al.,  2010,  ApJ,  708,  834,   
An Extremely Top-Heavy Initial Mass Function in the Galactic Center Stellar Disks. 2010ApJ...708..834B

Saglia, R. P., Fabricius, M., Bender, R., Montalto, M., Lee, C.-H., Riffeser, A., et al.,  2010,  A&A,  509,  A61,   
The old and heavy bulge of M 31 . I. Kinematics and stellar populations. 2010A&A...509A..61S


Castro-Rodriguéz, N., Arnaboldi, M., Aguerri, J. A. L., Gerhard, O., Okamura, S., Yasuda, N., et al.,  2009,  A&A,  507,  621,   
Intracluster light in the Virgo cluster: large scale distribution. 2009A&A...507..621C

Ulubay-Siddiki, A., Gerhard, O., Arnaboldi, M.,  2009,  MNRAS,  398,  535,   
Self-gravitating warped discs around supermassive black holes. 2009MNRAS.398..535U

Doherty, M., Arnaboldi, M., Das, P., Gerhard, O., Aguerri, J. A. L., Ciardullo, R., et al.,  2009,  A&A,  502,  771,   
The edge of the M 87 halo and the kinematics of the diffuse light in the Virgo cluster core. 2009A&A...502..771D

Bartko, H., Martins, F., Fritz, T. K., Genzel, R., Levin, Y., Perets, H. B., et al.,  2009,  ApJ,  697,  1741,   
Evidence for Warped Disks of Young Stars in the Galactic Center. 2009ApJ...697.1741B

de Lorenzi, F., Gerhard, O., Coccato, L., Arnaboldi, M., Capaccioli, M., Douglas, N. G., et al.,  2009,  MNRAS,  395,  76,   
Dearth of dark matter or massive dark halo? Mass-shape-anisotropy degeneracies revealed by NMAGIC dynamical models of the elliptical galaxy NGC
. 2009MNRAS.395...76D

Cresci, G., Hicks, E. K. S., Genzel, R., Schreiber, N. M. F., Davies, R., Bouché, N., et al.,  2009,  ApJ,  697,  115,   
The SINS Survey: Modeling the Dynamics of z ~ 2 Galaxies and the High-z Tully-Fisher Relation. 2009ApJ...697..115C

Coccato, L., Gerhard, O., Arnaboldi, M., Das, P., Douglas, N. G., Kuijken, K., et al.,  2009,  MNRAS,  394,  1249,   
Kinematic properties of early-type galaxy haloes using planetary nebulae. 2009MNRAS.394.1249C

Napolitano, N. R., Romanowsky, A. J., Coccato, L., Capaccioli, M., Douglas, N. G., Noordermeer, E., et al.,  2009,  MNRAS,  393,  329,   
The Planetary Nebula Spectrograph elliptical galaxy survey: the dark matter in NGC 4494. 2009MNRAS.393..329N


Ventimiglia, G., Arnaboldi, M., Gerhard, O.,  2008,  AN,  329,  1057,   
Intracluster Planetary Nebulae in the Hydra I cluster. 2008AN....329.1057V

Das, P., Gerhard, O., Coccato, L., Churazov, E., Forman, W., Finoguenov, A., et al.,  2008,  AN,  329,  940,   
The orbital structure of the massive elliptical galaxy NGC 5846. 2008AN....329..940D

Coccato, L., Gerhard, O., Arnaboldi, M., Das, P., Douglas, N. G., Kuijken, K., et al.,  2008,  AN,  329,  912,   
Probing the kinematics of early-type galaxy halos using planetary nebulae. 2008AN....329..912C

Trippe, S., Gillessen, S., Gerhard, O. E., Bartko, H., Fritz, T. K., Maness, H. L., et al.,  2008,  A&A,  492,  419,   
Kinematics of the old stellar population at the Galactic centre. 2008A&A...492..419T

Genzel, R., Burkert, A., Bouché, N., Cresci, G., Förster Schreiber, N. M., Shapley, A., et al.,  2008,  ApJ,  687,  59,   
From Rings to Bulges: Evidence for Rapid Secular Galaxy Evolution at z ~ 2 from Integral Field Spectroscopy in the SINS Survey. 2008ApJ...687...59G

Churazov, E., Forman, W., Vikhlinin, A., Tremaine, S., Gerhard, O., Jones, C.,  2008,  MNRAS,  388,  1062,   
Measuring the non-thermal pressure in early-type galaxy atmospheres: a comparison of X-ray and optical potential profiles in M87 and NGC 1399. 2008MNRAS.388.1062C

Zwitter, T., Siebert, A., Munari, U., Freeman, K. C., Siviero, A., Watson, F. G., et al.,  2008,  AJ,  136,  421,   
The Radial Velocity Experiment (rave): Second Data Release. 2008AJ....136..421Z

de Lorenzi, F., Gerhard, O., Saglia, R. P., Sambhus, N., Debattista, V. P., Pannella, M., et al.,  2008,  MNRAS,  385,  1729,   
Dark matter content and internal dynamics of NGC 4697: NMAGIC particle models from slit data and planetary nebula velocities. 2008MNRAS.385.1729D

Noordermeer, E., Merrifield, M. R., Coccato, L., Arnaboldi, M., Capaccioli, M., Douglas, N. G., et al.,  2008,  MNRAS,  384,  943,   
Testing the nature of S0 galaxies using planetary nebula kinematics in NGC 1023. 2008MNRAS.384..943N

Arnaboldi, M., Doherty, M., Gerhard, O., Ciardullo, R., Aguerri, J. A. L., Feldmeier, J. J., et al.,  2008,  ApJ,  674,  L17,   
Expansion Velocities and Core Masses of Bright Planetary Nebulae in the Virgo Cluster. 2008ApJ...674L..17A


Rattenbury, N. J., Mao, S., Debattista, V. P., Sumi, T., Gerhard, O., de Lorenzi, F.,  2007,  MNRAS,  378,  1165,   
Proper motion dispersions of red clump giants in the galactic bulge: observations and model comparisons. 2007MNRAS.378.1165R

Douglas, N. G., Napolitano, N. R., Romanowsky, A. J., Coccato, L., Kuijken, K., Merrifield, M. R., et al.,  2007,  ApJ,  664,  257,   
The PN.S Elliptical Galaxy Survey: Data Reduction, Planetary Nebula Catalog, and Basic Dynamics for NGC 3379. 2007ApJ...664..257D

Gerhard, O., Arnaboldi, M., Freeman, K. C., Okamura, S., Kashikawa, N., Yasuda, N.,  2007,  A&A,  468,  815,   
The kinematics of intracluster planetary nebulae and the on-going subcluster merger in the Coma cluster core. 2007A&A...468..815G

Murante, G., Giovalli, M., Gerhard, O., Arnaboldi, M., Borgani, S., Dolag, K.,  2007,  MNRAS,  377,  2,   
The importance of mergers for the origin of intracluster stars in cosmological simulations of galaxy clusters. 2007MNRAS.377....2M

Arnaboldi, M., Gerhard, O., Okamura, S., Kashikawa, N., Yasuda, N., Freeman, K. C.,  2007,  PASJ,  59,  419,   
Multi-Slit Imaging Spectroscopy Technique: Catalog of Intracluster Planetary Nebulae in the Coma Cluster. 2007PASJ...59..419A

de Lorenzi, F., Debattista, V. P., Gerhard, O., Sambhus, N.,  2007,  MNRAS,  376,  71,   
NMAGIC: a fast parallel implementation of a χ2-made-to-measure algorithm for modelling observational data. 2007MNRAS.376...71D

Williams, B. F., Ciardullo, R., Durrell, P. R., Vinciguerra, M., Feldmeier, J. J., Jacoby, G. H., et al.,  2007,  ApJ,  656,  756,   
The Metallicity Distribution of Intracluster Stars in Virgo. 2007ApJ...656..756W

Durrell, P. R., Williams, B. F., Ciardullo, R., Feldmeier, J. J., von Hippel, T., Sigurdsson, S., et al.,  2007,  ApJ,  656,  746,   
The Resolved Stellar Populations of a Dwarf Spheroidal Galaxy in the Virgo Cluster. 2007ApJ...656..746D

Williams, B. F., Ciardullo, R., Durrell, P. R., Feldmeier, J. J., Sigurdsson, S., Vinciguerra, M., et al.,  2007,  ApJ,  654,  835,   
Virgo's Intracluster Globular Clusters as Seen by the Advanced Camera for Surveys. 2007ApJ...654..835W


Steinmetz, M., Zwitter, T., Siebert, A., Watson, F. G., Freeman, K. C., Munari, U., et al.,  2006,  AJ,  132,  1645,   
The Radial Velocity Experiment (RAVE): First Data Release. 2006AJ....132.1645S

Aguerri, J. A. L., Castro-Rodríguez, N., Napolitano, N., Arnaboldi, M., Gerhard, O.,  2006,  A&A,  457,  771,   
Diffuse light in Hickson compact groups: the dynamically young system HCG 44. 2006A&A...457..771A

Merrett, H. R., Merrifield, M. R., Douglas, N. G., Kuijken, K., Romanowsky, A. J., Napolitano, N. R., et al.,  2006,  MNRAS,  369,  120,   
A deep kinematic survey of planetary nebulae in the Andromeda galaxy using the Planetary Nebula Spectrograph. 2006MNRAS.369..120M

Iodice, E., Arnaboldi, M., Saglia, R. P., Sparke, L. S., Gerhard, O., Gallagher, J. S., et al.,  2006,  ApJ,  643,  200,   
Stellar Kinematics for the Central Spheroid in the Polar Disk Galaxy NGC 4650A. 2006ApJ...643..200I

Englmaier, P., Gerhard, O.,  2006,  CeMDA,  94,  369,   
Milky Way Gas Dynamics. 2006CeMDA..94..369E

Sambhus, N., Gerhard, O., Méndez, R. H.,  2006,  AJ,  131,  837,   
Kinematic Evidence for Different Planetary Nebula Populations in the Elliptical Galaxy NGC 4697. 2006AJ....131..837S


Teodorescu, A. M., Méndez, R. H., Saglia, R. P., Riffeser, A., Kudritzki, R.-P., Gerhard, O. E., et al.,  2005,  ApJ,  635,  290,   
Planetary Nebulae and Stellar Kinematics in the Flattened Elliptical Galaxy NGC 1344. 2005ApJ...635..290T

López-Corredoira, M., Cabrera-Lavers, A., Gerhard, O. E.,  2005,  A&A,  439,  107,   
A boxy bulge in the Milky Way. Inversion of the stellar statistics equation with 2MASS data. 2005A&A...439..107L

Aguerri, J. A. L., Gerhard, O. E., Arnaboldi, M., Napolitano, N. R., Castro-Rodriguez, N., Freeman, K. C.,  2005,  AJ,  129,  2585,   
Intracluster Stars in the Virgo Cluster Core. 2005AJ....129.2585A

Gerhard, O., Arnaboldi, M., Freeman, K. C., Kashikawa, N., Okamura, S., Yasuda, N.,  2005,  ApJ,  621,  L93,   
Detection of Intracluster Planetary Nebulae in the Coma Cluster. 2005ApJ...621L..93G

Napolitano, N. R., Capaccioli, M., Romanowsky, A. J., Douglas, N. G., Merrifield, M. R., Kuijken, K., et al.,  2005,  MNRAS,  357,  691,   
Mass-to-light ratio gradients in early-type galaxy haloes. 2005MNRAS.357..691N


Arnaboldi, M., Gerhard, O., Aguerri, J. A. L., Freeman, K. C., Napolitano, N. R., Okamura, S., et al.,  2004,  ApJ,  614,  L33,   
The Line-of-Sight Velocity Distributions of Intracluster Planetary Nebulae in the Virgo Cluster Core. 2004ApJ...614L..33A

Immeli, A., Samland, M., Westera, P., Gerhard, O.,  2004,  ApJ,  611,  20,   
Subgalactic Clumps at High Redshift: A Fragmentation Origin?. 2004ApJ...611...20I

López-Corredoira, M., Cabrera-Lavers, A., Gerhard, O. E., Garzón, F.,  2004,  A&A,  421,  953,   
Evidence for a deficit of young and old stars in the Milky Way inner in-plane disc. 2004A&A...421..953L

Murante, G., Arnaboldi, M., Gerhard, O., Borgani, S., Cheng, L. M., Diaferio, A., et al.,  2004,  ApJ,  607,  L83,   
The Diffuse Light in Simulations of Galaxy Clusters. 2004ApJ...607L..83M

Bissantz, N., Debattista, V. P., Gerhard, O.,  2004,  ApJ,  601,  L155,   
Large-Scale Model of the Milky Way: Stellar Kinematics and the Microlensing Event Timescale Distribution in the Galactic Bulge. 2004ApJ...601L.155B

Immeli, A., Samland, M., Gerhard, O., Westera, P.,  2004,  A&A,  413,  547,   
Gas physics, disk fragmentation,  and bulge formation in young galaxies. 2004A&A...413..547I

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