The SDSS-IV MaNGA Sample: Design, Optimization, and Usage Considerations

doi:10.3847/1538-3881/aa7ecc

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	The SDSS-IV MaNGA Sample: Design, Optimization, and Usage Considerations
	Wak, David A.7,10,11; Bundy, Kevin 6,8; Diamond-Stanic, Aleksandar M.5,10; Yan, Renbin 4; Blanton, Michael R.3; Bershady, Matthew A.10; Sanchez-Gallego, Jose R.2; Drory, Niv 1; Jones, Amy 18; Kauffmann, Guinevere 18
刊名	ASTRONOMICAL JOURNAL
	2017-09-01
卷号	154 期号:3
关键词	Galaxies: Evolution Galaxies: General Galaxies: Statistics Surveys
ISSN号	0004-6256
DOI	10.3847/1538-3881/aa7ecc
英文摘要	We describe the sample design for the SDSS-IV MaNGA survey and present the final properties of the main samples along with important considerations for using these samples for science. Our target selection criteria were developed while simultaneously optimizing the size distribution of the MaNGA integral field units (IFUs), the IFU allocation strategy, and the target density to produce a survey defined in terms of maximizing signal-to-noise ratio, spatial resolution, and sample size. Our selection strategy makes use of redshift limits that only depend on i-band absolute magnitude (M-i), or, for a small subset of our sample, M-i and color (NUV - i). Such a strategy ensures that all galaxies span the same range in angular size irrespective of luminosity and are therefore covered evenly by the adopted range of IFU sizes. We define three samples: the Primary and Secondary samples are selected to have a flat number density with respect to M-i and are targeted to have spectroscopic coverage to 1.5 and 2.5 effective radii (R-e), respectively. The Color-Enhanced supplement increases the number of galaxies in the low-density regions of color-magnitude space by extending the redshift limits of the Primary sample in the appropriate color bins. The samples cover the stellar mass range 5 x 10(8) <= M-* 3 x 10(11) M-circle dot h(-2) and are sampled at median physical resolutions of 1.37 and 2.5 kpc for the Primary and Secondary samples, respectively. We provide weights that will statistically correct for our luminosity and color-dependent selection function and IFU allocation strategy, thus correcting the observed sample to a volume-limited sample.
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000410574100004
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/32551]
专题	中国科学院上海天文台
通讯作者	Wak, David A.
作者单位	1.Univ Texas Austin, McDonald Observ, 1 Univ, Austin, TX 78712 USA 2.Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA 3.NYU, Dept Phys, Ctr Cosmol & Particle Phys, 4 Washington Pl, New York, NY 10003 USA 4.Univ Kentucky, Dept Phys & Astron, 505 Rose St, Lexington, KY 40506 USA 5.Bates Coll, Dept Phys & Astron, 44 Campus Ave,Carnegie Sci, Lewiston, ME 04240 USA 6.Univ Tokyo, Kavli IPMU WPI, UTIAS, Kashiwa, Chiba 2778583, Japan 7.Univ North Carolina Asheville, Dept Phys, One Univ Hts, Asheville, NC 28804 USA 8.UC Santa Cruz, Dept Astron & Astrophys, MS UCO LICK, 1156 High St, Santa Cruz, CA 95064 USA 9.Univ Utah, Dept Phys & Astron, 115 S 1400 E, Salt Lake City, UT 84112 USA 10.Univ Wisconsin, Astron Dept, Madison, WI 53706 USA
推荐引用方式 GB/T 7714	Wak, David A.,Bundy, Kevin,Diamond-Stanic, Aleksandar M.,et al. The SDSS-IV MaNGA Sample: Design, Optimization, and Usage Considerations[J]. ASTRONOMICAL JOURNAL,2017,154(3).
APA	Wak, David A..,Bundy, Kevin.,Diamond-Stanic, Aleksandar M..,Yan, Renbin.,Blanton, Michael R..,...&Brownstein, Joel R..(2017).The SDSS-IV MaNGA Sample: Design, Optimization, and Usage Considerations.ASTRONOMICAL JOURNAL,154(3).
MLA	Wak, David A.,et al."The SDSS-IV MaNGA Sample: Design, Optimization, and Usage Considerations".ASTRONOMICAL JOURNAL 154.3(2017).