Speccy - A dynamic spectrum+template viewer

Plate	MJD	FiberID	RUN2D	RA_plug	Dec_plug	Z_pipe	σ_Z	Z_warning	Class	Subclass	SNR	EBOSS_TARGET1	Links

Zoom: Out: In:

Current redshift:

Adjust redshift:

Scroll
window

Model Template:

URL: rescale model:

Z_CONF_PERSON:

3 2 1 0

Toggle plot elements:
Signal Noise Model Residual
Lines Sky × Sky Trans.

CLASS_PERSON:

NONE STAR GALAXY QSO QSO_BAL BLAZAR

EXTRAS:

Galaxy with broad lines? Particularly interesting spectrum?

ISSUE:

Smoothing: Off 3 5 7 9 11 15 31

COMMENTS:

GALEX	DSS2	SDSS u	SDSS gri	PS1dr1 gri	LSdr9 grz	HSCdr2 grz	2MASS JHK	VIKING K_s	unWISE W1W2	VLASS 2-4GHz	Zoom

Usage:

http://erosita-bhm.mpe.mpg.de/speccy/speccy.html?specfile={URL}

(substitute URL of a valid speccy file)

The cursor (arrow) keys move the template in redshift and normalisation
To zoom into a region: click and hold the right mouse button at one corner of the region of interest, then drag the pointer to the opposite corner of the region where you then release the right button (visual feedback is not yet available).
Left-clicking the button displays the coordinates of the pointer position at the time of the click in the bottom right hand of the spectrum plot.
Plots of the current spectral view can be saved directly as .png files using the 'Save current view as as .png' button.
Please send comments, complaints and suggestions to dwelly@mpe.mpg.de

Speccy File format:

Speccy expects plain ASCII text files as input.
Header entries are prefixed by a hash+space and contain "key = value" pairs. e.g. '# PLATE = 1234'
The main body of the speccy file should contain five comma-separated columns (with all fluxes in units 10^-17 erg cm^-2 s^-1 Å^-1):

Observed Vacuum Wavelength (Å), Flux, FluxError, SkyFlux, ModelFlux

Template files must contain (at least) two comma-separated columns:

Rest-frame Vacuum Wavelength (Å), ModelFlux (F_λ)

Note. Only the first two columns of template files are noticed, and so a regular Speccy spectrum file can be used as a template

Class/Confidence matrix :

CLASS_PERSON	Z_CONF_PERSON
CLASS_PERSON	0	1	2	3
NONE	No vote	Bad Spectrum	No Signal	Continuum only
STAR			Star_?	Star
QSO		QSO_?	QSO_Z?	QSO
GALAXY			Galaxy_Z?	Galaxy
QSO_BAL			QSO_BAL_Z?	QSO_BAL
BLAZAR			BLAZAR_Z?	BLAZAR

Emission/absorption line list:

These are the lines that are plotted over the spectra.

Line Name	Rest wavelength (Å, vacuum)	Abs./Em.?	Reference

Credits

This tool makes use of the legacysurvey.org viewer, and the hips2fits service provided by CDS.

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