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...more INTEGRAL Science
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ESA INTEGRAL News Archive
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INTEGRAL Spectrometer Status
MPE's
Notes
CESR
Notes
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INTEGRAL Science Chronology
(RD selected science highlights,
latest on top;
for
other highlights/selections see ESA and press release links)
- The INTEGRAL Science Workshop in Dublin, Ireland, attracts
nearly 300 scientists, with stimulating discussions of results among
various high-energy missions world-wide (30Sep2010)
- SPI
refines its findings on positron annihilation emission in the inner
Galaxy, clearly confirming disk emission at a low level and shallow
spatial distribution, and deviations from perfectly-GC-centered
emission of the bright bulge (26Sep2010)
- SPI publishes 26Al spectra Doppler Shifts along the inner
Galaxy (INTEGRAL picture
of
the
month Oct2010) (20Sep2010)
- SPI finds 26Al emission from nearby nucleosynthesis of the
Scorpius-Centaurus region (23Feb2010)
- SPI publishes 26Al spectra for different regions along the
plane of the Galaxy (INTEGRAL picture of the
month Jun2009) (29Jan2009)
- SPI on INTEGRAL monitors
a flood of outbursts from an AXP/Magnetar (1E1547.0, neutron star with
soft X-ray spectrum) which FERMI/GBM had seen to burst already last
October. ToO for INTEGRAL will be made on 24Jan (22Jan2009)
- The INTEGRAL
Science
Workshop in Copenhagen/Denmark, focussed on 'compact
objects', attracts over 150 scientists, and features broad science
discussions reaching well beyond the INTEGRAL community. (14Sep2008)
- Polarized emission from the Crab (see note from Oct 2007
below) is published in 'Science' (ESA Press
Release)(29Aug2008)
- INTEGRAL schedules a ToO for a Soft Gamma-Ray Repeater /
Magnetar, discovered with the GBM on the recently-launched Fermi
gamma-ray mission (26Aug2008)
- INTEGRAL schedules a ToO for a rather nearby supernova,
SN2008S, probably a type IIn, at 3.8 Mpc distance (4Feb2008)
- Positron annihilation in the Galaxy's disk appears
asymmetric, brighter
in the 4th quadrant, and indicating positron origins in binaries
(Weidenspointner et al., 2007)(Press Release
10Jan2008)(04Oct2007)
- IBIS\INTEGRAL surveys the Galaxy's cosmic neighborhood,
finding
an anisotropy reminiscent of that seen in AUGER's proof of the
extragalactic origin of highest-energy cosmic-rays (Krivonos et al.
2007)(ESA
Press Release)(17Dec2007)
- INTEGRAL schedules its first ToO based on an AGILE trigger
(Outburst of AGN 3C454.3)(16Nov2007)
- INTEGRAL "Lustrum" Science
workshop in Sardinia celebrated 5 years of
INTEGRAL with 72 talks and 26 posters in a 3-day meeting with ~130
participants (ESA Press
Release)(19Oct2007)
- Crab off-pulse polarization (angle ~120deg) now clearly
measured with SPI (Dean et al.) and IBIS Compton mode (Grenier et
al.)(19Oct2007)
- INTEGRAL sees ist so far most distant source, and AGN named
IGR J22517+2218 at redshift 3.66 (ESA Press
Release)(Bassani et al. 2007)(03Oct2007)
- AGN spectra are found consistent
with the X-ray background spectrum, with a high-energy cutoff in their
spectra at 100-200 keV and strong AGN luminosity evolution between
redshifts 0 and 1 (IBIS analysis; Sazonov et al. 2007)(23Aug2007)
- The 3rd IBIS source catalogue finds 421 sources, among them
unexpected CVs, many AGN populating locations of nearby galaxy
clusters, and a rich variety of accreting binaries with neutron stars
or black holes as compact components (ESA press
release)(Bird et al. 2007)
- Inner-Galaxy monitoring finds relatively-low central
black-hole (SgrA) and binary
activity, which allows to constrain the population of fainter accreting
binaries (Kuulkers et al. 2007; ESA
press release)(18Jan2007)
- GRB061122 detected 7 deg off axis (22Nov2006)
- Cyg X-1 outburst at 2*I(Crab) in soft-hard state (Tuerler
et al. 2006)(05Oct2006)
- Evidence for Crab polarization-state correlations between
gamma-rays (SPI) and optical (Willis et al. 2006)(01Aug2006)
- Xray Binary spectra (LMXBs) show hard tails from blackbody
emission, Comptonized by magnetospheric electrons (Paizis et al.
2006)(26Jul2006)
- Clear (5sigma) detection of both 60Fe lines from the Galaxy
with SPI
(Wang et al. 2007) (Picture of Jun07)(03Jul06)
- Detection of both 44Ti low-energy lines with IBIS (Renaud
et al. 2006) (29Jun06)
- Determination of AGN luminosity function, showing that AGN
contribute only at the percent level to total background at 20-50 keV,
and that obscured AGN are a minor population (Beckmann et al. 2006; see
also Sazonov et al. 2006, Bassani et al. 2006, Bazzano et al. 2006,
Bird et al. 2006) (28Jun06)
- Detection of a GRB from 'the backside' of INTEGRAL with
IBIS (Marcinkowski et al. 2006) (press
release)(POM)
(16Jun2006)
- Identification of IBIS-detected absorbed-source
AXJ1838-0655 with HESS source J1837-069, suggestive of a cosmic
particle accelerator (SNR/PWN?); similarly, INTEGRAL IGR18135-1751
coincides with HESS J1813-178, also seen by MAGIC, and likely a SNR
accelerating cosmic rays. Issue: electrons or hadrons? (Molkov et al.
2004; Bird et al. 2006) (10May2006)
- Anomalous X-ray pulsars (AXPs)
identified
as
high-magnetic field neutron stars, related to soft
gamma-ray repeaters (denHartog et al. 2006, POM)
(20Mar2006)
- Earth
observations clearly detect the cosmic
diffuse X-ray background with SPI and IBIS (POM_Jun06)(POM_May06)(ESA Press Release
Sep06)(Churazov
et al. 2006)(25Jan2006)
- Publication of 26Al
Diffuse-Emission Results: Line width constraint, signature of
Galactic rotation (POM)(Diehl et
al. 2006)(05Jan2006)
- Detection of new class of high-mass and rapidly-variable
X-ray
Binaries (POM)(Negueruela
2005)(02Nov2005)
- Non-detection of 44Ti lines from Cas A with SPI rules out
44Ti velocities <1000 km/s (Vink 2005) (18Jul2005)
- First AGN catalogue from INTEGRAL (Beckmann et al.
2005)(08Jul2005)
- Second soft gamma-ray source catalogue released (Bird et
al. 2005)(05Jul2005)
- Positron annihilation from Positronium continuum confirms
511 keV line results (Weidenspointner et al. 2005) (21Jun2005)
- Diffuse Galactic Emission analyzed for source
contributions: low-energy part dominated by typical X-ray sources,
high-energy part with singificant-to-dominating contribution of a new
source population (Lebrun et al. 2005; Bouchet et al. 2005; Strong et
al. 2005) (15Jun2005)
- New discoveries by HESS of cosmic-ray acceleration signs in
/ near supernova remnants: INTEGRAL/IBIS detection of these same
sources (Ubertini et al. 2005) (15Jun2005)
- Diffuse 26Al emission from inner Galaxy: 26Al nuclei found
to have low velocity as typical for ISM; detection of Doppler shift
signature as
expected from Galactic rotation (Diehl et al. 2005) (15Jun2005)
- Galactic Center region sources imaging: new source near GC
detected (Belanger et al. 2005)(21May2005)
- State change and flaring activity in Cyg-X1-like BH binary
JGR17464 (Joinet et al. 2005) (10Mar2005)
- Cyg X-1 BH accretion seen in intermediate state,
variability analyzed (Cadolle-Bel et al. 2005, Malzac et al. 2005)
(10Mar2005)
- Blazar 3C454 outburst detected with INTEGRAL (Pian et al.
2006) (15Feb06)
- Cyclotron lines most clearly seen in transient X-ray pulsar
X00115+63 (Santangelo et al. 2005) (21Jan2005)
- Giant outburst of magnetar SGR1806 on 27 Dec 2004: First
reported from SPI-ACS detectors (GCN 2920ff; MPE report
(in german)) (21Jan2005)
- Absence of 44Ti emission from SNR Tycho rules out sub-Ch
model for this case (Renaud et al. 2005)(18Jan2005)
- 44Ti emission from Cas A SNR is confirmed with IBIS (Vink
et al. 2005) (18Jan2005)
- Radioactive 60Fe: Now seen with SPI (Internal INTEGRAL
Workshop at ESTEC; Harris et al. A&A 2005) (18Jan2005)
- Positron annihilation measurements confirm symmetric
bulge-like extended emission in inner Galaxy with a weak disk
component; annihilation must occur in warm partly-ionized ISM (Jean et
al. 2005; Churazov et al.
2005; Knödlseder et al. 2005) (18Jan2005)
- Mapping of X-ray binaries in Galaxy confirms HMXB origin in
star-forming regions, and LMXB origin in old stellar population
(Lutovinov et al. 2004) (11Nov2004)
- Cyclotron lines seen in Nov-Jan outburst from Be-X-ray
binary V0332+53 (Kreykenbohm et al. 2005) (26Dec2004)
- Rapid GRB followups on INTEGRAL's GRB041219 detection allow
prompt burst discovery also in IR (Hanlon et al. 2005) (Jan2005)
- Fastest-rotating X-ray pulsar: Discovered JGR 00291+5934
as millisecond pulsar with 1.67 ms periodicity (Eckert et al. ATel 352;
Falanga et al. A&A 2005) (02Dec2004)
- 26Al emission from Cygnus region indicates young massive
star cluster origin, from slightly broadened line
(Knödlseder et
al. 2004) (11Feb2004)
- 44Ti emission from candidate young SNR in Vela region is
not confirmed by INTEGRAL (vonKienlin et al. 2004) (11Feb2004)
- Closest and underluminous Gamma-Ray Burst GRB031203
detected (z~0.3), associated with SN (Sazonov et al. 2004) (05Aug2004)
- Diffuse emission in the innner Galaxy is confirmed in SPI
surveys (yet not understood), in spite of an unexpectedly-large
population
of hard X-ray point sources discovered with ISGRI (Lebrun et al. 2004;
Strong
et al. 2004)(17Mar2004)
- A gamma-ray burst occurs within INTEGRAL's field of view
(GRB031203); INTEGRAL's alert and results stimulated follow-up
studies on its optical counterpart after its finding (05Dec2003)
- 26Al emission from inner Galaxy does not confirm ~550 km/s
high-velocity line reported earlier (Diehl et al. 2003)
(11Nov2003)
- Positron annihilation emission from inner Galaxy appears as
extended, bulge-like emission (Jean et al. 2003) (17Sep2003; 10Nov2003)
- New hard-X-ray sources are discovered with INTEGRAL, which
appear embedded in molecular clouds, e.g. IGR J16318-4848, opening up
broader research on stellar-mass black holes (Walter et al. 2003)
(10Apr2003,17Oct2003)
- First GRBs rapidly located with INTEGRAL/IBAS, specifically
GRB021219 (Mereghetti et al. GCNs 1706 ff) (20Dec2002)
SPI Instrument Performance Notes
&
News
Last update: 2010-09-20 by R.
Diehl 
Authorized by R. Diehl |
MPE
