Astronomy and Astrophysics, volume 624A, 141-141 (2019/4-1)
The MUSE-Wide Survey: survey description and first data release.
URRUTIA T., WISOTZKI L., KERUTT J., SCHMIDT K.B., HERENZ E.C., KLAR J., SAUST R., WERHAHN M., DIENER C., CARUANA J., KRAJNOVIC D., BACON R., BOOGAARD L., BRINCHMANN J., ENKE H., MASEDA M., NANAYAKKARA T., RICHARD J., STEINMETZ M. and WEILBACHER P.M.
Abstract (from CDS):
We present the MUSE-Wide survey, a blind, 3D spectroscopic survey in the CANDELS/GOODS-S and CANDELS/COSMOS regions. The final survey will cover 100 x 1 arcmin2 MUSE fields. Each MUSE-Wide pointing has a depth of one hour and hence targets more extreme and more luminous objects over ten times the area of the MUSE-Deep fields. The legacy value of MUSE-Wide lies in providing "spectroscopy of everything" without photometric pre-selection. We describe the data reduction, post-processing and PSF characterization of the first 44 CANDELS/GOODS-S MUSE-Wide pointings released with this publication. Using a 3D matched filtering approach we detect 1602 emission line sources, including 479 Lyman-α (Lyα) emitting galaxies with redshifts 2.9≤z≤6.3. We cross-matched the emission line sources to existing photometric catalogs, finding almost complete agreement in redshifts (photometric and spectroscopic) and stellar masses for our low redshift (z<1.5) emitters. At high redshift, we only find ∼55% matches to photometric catalogs. We encounter a higher outlier rate and a systematic offset of Δz~=0.2 when comparing our MUSE redshifts with photometric redshifts from the literature. Cross-matching the emission line sources with X-ray catalogs from the Chandra Deep Field South, we find 127 matches, mostly in agreement with the literature redshifts, including ten objects with no prior spectroscopic identification. Stacking X-ray images centered on our Lyα emitters yields no signal; the Lyα population is not dominated by even low luminosity AGN. Other cross-matches of our emission-line catalog to radio and submillimeter data, yielded far lower numbers of matches, most of which already were covered by the X-ray catalog. A total of 9205 photometrically selected objects from the CANDELS survey lie in the MUSE-Wide footprint, of which we provide optimally extracted 1D spectra. We are able to determine the spectroscopic redshift of 98% of 772 photometrically selected galaxies brighter than 24th F775W magnitude. All the data in the first data release - datacubes, catalogs, extracted spectra, maps - are available on the MUSE-Wide data release webpage.
© ESO 2019
surveys - galaxies: general - galaxies: distances and redshifts - galaxies: active
VizieR on-line data:
<Available at CDS (J/A+A/624/A141): table1.dat photcat.dat photid.dat emobj.dat emlines.dat>
View the reference in ADS
To bookmark this query, right click on this link: simbad:2019A&A...624A.141U and select 'bookmark this link' or equivalent in the popup menu