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The MUSE-Wide Survey :
The MUSE-Wide Survey : survey description and first data release
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Urrutia, T. (author)
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Wisotzki, L. (author)
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Kerutt, J. (author)
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Schmidt, K. B. (author)
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- Herenz, Edmund Christian (author)
- Stockholms universitet,Institutionen för astronomi
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Klar, J. (author)
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Saust, R. (author)
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Werhahn, M. (author)
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Diener, C. (author)
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Caruana, J. (author)
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Krajnovic, D. (author)
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Bacon, R. (author)
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Boogaard, L. (author)
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Brinchmann, J. (author)
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Enke, H. (author)
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Maseda, M. (author)
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Nanayakkara, T. (author)
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Richard, J. (author)
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Steinmetz, M. (author)
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Weilbacher, P. M. (author)
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(creator_code:org_t)
- 2019-04-26
- 2019
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 624
- Related links:
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https://www.aanda.or...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- 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 arcmin(2) 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-alpha (Ly alpha) emitting galaxies with redshifts 2.9 less than or similar to z less than or similar to 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 similar to 55% matches to photometric catalogs. We encounter a higher outlier rate and a systematic offset of Delta z similar or equal to 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 Ly alpha emitters yields no signal; the Ly alpha 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.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- surveys
- galaxies: general
- galaxies: distances and redshifts
- galaxies: active
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Urrutia, T.
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Wisotzki, L.
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Kerutt, J.
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Schmidt, K. B.
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Herenz, Edmund C ...
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Klar, J.
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show more...
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Saust, R.
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Werhahn, M.
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Diener, C.
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Caruana, J.
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Krajnovic, D.
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Bacon, R.
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Boogaard, L.
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Brinchmann, J.
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Enke, H.
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Maseda, M.
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Nanayakkara, T.
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Richard, J.
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Steinmetz, M.
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Weilbacher, P. M ...
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show less...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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Stockholm University