气候变化领域集成服务门户(CCPortal): Census of the Local Universe (CLU) Narrowband Survey. I. Galaxy Catalogs from Preliminary Fields

CCPortal

DOI	10.3847/1538-4357/ab2131
	Census of the Local Universe (CLU) Narrowband Survey. I. Galaxy Catalogs from Preliminary Fields
	Cook D.O.; Kasliwal M.M.; Sistine A.V.; Kaplan D.L.; Sutter J.S.; Kupfer T.; Shupe D.L.; Laher R.R.; Masci F.J.; Dale D.A.; Sesar B.; Brady P.R.; Yan L.; Ofek E.O.; Reitze D.H.; Kulkarni S.R.
发表日期	2019
ISSN	0004637X
卷号	880 期号:1
英文摘要	We present the Census of the Local Universe (CLU) narrowband survey to search for emission-line (Hα) galaxies. CLU-Hαhas imaged ≈3π of the sky (26,470 deg2) with four narrowband filters that probe a distance out to 200 Mpc. We have obtained spectroscopic follow-up for galaxy candidates in 14 preliminary fields (101.6 deg2) to characterize the limits and completeness of the survey. In these preliminary fields, CLU can identify emission lines down to an Hαflux limit of 10-14 erg s-1 cm-2 at 90% completeness, and recovers 83% (67%) of the Hαflux from cataloged galaxies in our search volume at the Σ =2.5 (Σ =5) color excess levels. The contamination from galaxies with no emission lines is 61% (12%) for Σ =2.5 (Σ =5). Also, in the regions of overlap between our preliminary fields and previous emission-line surveys, we recover the majority of the galaxies found in previous surveys and identify an additional ≈300 galaxies. In total, we find 90 galaxies with no previous distance information, several of which are interesting objects: 7 blue compact dwarfs, 1 green pea, and a Seyfert galaxy; we also identify a known planetary nebula. These objects show that the CLU-Hαsurvey can be a discovery machine for objects in our own Galaxy and extreme galaxies out to intermediate redshifts. However, the majority of the CLU-Hαgalaxies identified in this work show properties consistent with normal star-forming galaxies. CLU-Hαgalaxies with new redshifts will be added to existing galaxy catalogs to focus the search for the electromagnetic counterpart to gravitational wave events.. The American Astronomical Society. All rights reserved..
英文关键词	galaxies: Seyfert; galaxies: starburst; gravitational waves; surveys
来源期刊	Astrophysical Journal
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176387
作者单位	California Institute of Technology, 1200 East California Blvd., Pasadena, CA 91125, United States; CalTech/IPAC, 1200 E California Blvd., Pasadena, CA 91125, United States; University of Wisconsin-Milwaukee, P.O. Box 413, Milwaukee, WI 53201, United States; University of Wyoming, 1000 University Ave., Laramie, WY 82071, United States; Max Planck Institute for Astronomy, Königstuhl 17, Heidelberg, D-69117, Germany; Weizmann Institute of Science, Rehovot, Israel
推荐引用方式 GB/T 7714	Cook D.O.,Kasliwal M.M.,Sistine A.V.,et al. Census of the Local Universe (CLU) Narrowband Survey. I. Galaxy Catalogs from Preliminary Fields[J],2019,880(1).
APA	Cook D.O..,Kasliwal M.M..,Sistine A.V..,Kaplan D.L..,Sutter J.S..,...&Kulkarni S.R..(2019).Census of the Local Universe (CLU) Narrowband Survey. I. Galaxy Catalogs from Preliminary Fields.Astrophysical Journal,880(1).
MLA	Cook D.O.,et al."Census of the Local Universe (CLU) Narrowband Survey. I. Galaxy Catalogs from Preliminary Fields".Astrophysical Journal 880.1(2019).