%0 Generic %1 herenz2017musewide %A Herenz, E. C. %A Urrutia, T. %A Wisotzki, L. %A Kerutt, J. %A Saust, R. %A Werhahn, M. %A Schmidt, K. B. %A Caruana, J. %A Diener, C. %A Bacon, R. %A Brinchman, J. %A Schaye, J. %A Maseda, M. %A Weilbacher, P. M. %D 2017 %K MUSE survey wide %T The MUSE-Wide Survey: A first catalogue of 831 emission line galaxies %U http://arxiv.org/abs/1705.08215 %X We present a first instalment of the MUSE-Wide survey, covering an area of 22.2 arcmin$^2$ (corresponding to $\sim$20% of the final survey) in the CANDELS/Deep area of the Chandra Deep Field South. We use the MUSE integral field spectrograph at the ESO VLT to conduct a full-area spectroscopic mapping at a depth of 1h exposure time per 1 arcmin$^2$ pointing. We searched for compact emission line objects using our newly developed LSDCat software based on a 3-D matched filtering approach, followed by interactive classification and redshift measurement of the sources. Our catalogue contains 831 distinct emission line galaxies with redshifts ranging from 0.04 to 6. Roughly one third (237) of the emission line sources are Lyman $\alpha$ emitting galaxies with $3 < z < 6$, only four of which had previously measured spectroscopic redshifts. At lower redshifts 351 galaxies are detected primarily by their OII emission line ($0.3 z 1.5$), 189 by their OIII line ($0.21 łesssim z 0.85$), and 46 by their H$\alpha$ line ($0.04 z łesssim 0.42$). Comparing our spectroscopic redshifts to photometric redshift estimates from the literature, we find excellent agreement for $z<1.5$ with a median $\Delta z$ of only $4 10^-4$ and an outlier rate of 6%, however a significant systematic offset of $\Delta z = 0.26$ and an outlier rate of 23% for Ly$\alpha$ emitters at $z>3$. Together with the catalogue we also release 1D PSF-weighted extracted spectra and small 3D datacubes centred on each of the 831 sources.

@misc{herenz2017musewide, abstract = {We present a first instalment of the MUSE-Wide survey, covering an area of 22.2 arcmin$^2$ (corresponding to $\sim$20% of the final survey) in the CANDELS/Deep area of the Chandra Deep Field South. We use the MUSE integral field spectrograph at the ESO VLT to conduct a full-area spectroscopic mapping at a depth of 1h exposure time per 1 arcmin$^2$ pointing. We searched for compact emission line objects using our newly developed LSDCat software based on a 3-D matched filtering approach, followed by interactive classification and redshift measurement of the sources. Our catalogue contains 831 distinct emission line galaxies with redshifts ranging from 0.04 to 6. Roughly one third (237) of the emission line sources are Lyman $\alpha$ emitting galaxies with $3 < z < 6$, only four of which had previously measured spectroscopic redshifts. At lower redshifts 351 galaxies are detected primarily by their [OII] emission line ($0.3 \lesssim z \lesssim 1.5$), 189 by their [OIII] line ($0.21 \lesssim z \lesssim 0.85$), and 46 by their H$\alpha$ line ($0.04 \lesssim z \lesssim 0.42$). Comparing our spectroscopic redshifts to photometric redshift estimates from the literature, we find excellent agreement for $z<1.5$ with a median $\Delta z$ of only $\sim 4 \times 10^{-4}$ and an outlier rate of 6%, however a significant systematic offset of $\Delta z = 0.26$ and an outlier rate of 23% for Ly$\alpha$ emitters at $z>3$. Together with the catalogue we also release 1D PSF-weighted extracted spectra and small 3D datacubes centred on each of the 831 sources.}, added-at = {2017-05-24T09:50:14.000+0200}, author = {Herenz, E. C. and Urrutia, T. and Wisotzki, L. and Kerutt, J. and Saust, R. and Werhahn, M. and Schmidt, K. B. and Caruana, J. and Diener, C. and Bacon, R. and Brinchman, J. and Schaye, J. and Maseda, M. and Weilbacher, P. M.}, biburl = {https://www.bibsonomy.org/bibtex/23a5e692068efd8682c788cc26a980e78/miki}, description = {[1705.08215] The MUSE-Wide Survey: A first catalogue of 831 emission line galaxies}, interhash = {dcc3f285316e8536c083d3fac5e6400b}, intrahash = {3a5e692068efd8682c788cc26a980e78}, keywords = {MUSE survey wide}, note = {cite arxiv:1705.08215Comment: 24 pages, 14 figures, accepted for publication in A&A, data products are available for download from http://muse-vlt.eu/science/muse-wide-survey/ and later via the CDS}, timestamp = {2017-05-24T09:50:14.000+0200}, title = {The MUSE-Wide Survey: A first catalogue of 831 emission line galaxies}, url = {http://arxiv.org/abs/1705.08215}, year = 2017 }