MASS-TO-LIGHT VERSUS COLOR RELATIONS FOR DWARF IRREGULAR GALAXIES

doi:10.3847/0004-6256/152/6/177

CORC > 国家天文台 > 中国科学院国家天文台

	MASS-TO-LIGHT VERSUS COLOR RELATIONS FOR DWARF IRREGULAR GALAXIES
	Herrmann,Kimberly A.3; Hunter,Deidre A.4; Zhang,Hong-Xin 1,5; Elmegreen,Bruce G.2
刊名	The Astronomical Journal
	2016-11-22
卷号	152 期号:6
关键词	galaxies: dwarf galaxies: fundamental parameters galaxies: irregular galaxies: structure
ISSN号	0004-6256
DOI	10.3847/0004-6256/152/6/177
英文摘要	ABSTRACT We have determined new relations between UBV colors and mass-to-light ratios (M/L) for dwarf irregular (dIrr) galaxies, as well as for transformed g′???r′. These M/L to color relations (MLCRs) are based on stellar mass density profiles determined for 34 LITTLE THINGS dwarfs from spectral energy distribution fitting to multi-wavelength surface photometry in passbands from the FUV to the NIR. These relations can be used to determine stellar masses in dIrr galaxies for situations where other determinations of stellar mass are not possible. Our MLCRs are shallower than comparable MLCRs in the literature determined for spiral galaxies. We divided our dwarf data into four metallicity bins and found indications of a steepening of the MLCR with increased oxygen abundance, perhaps due to more line blanketing occurring at higher metallicity.
语种	英语
出版者	The American Astronomical Society
WOS记录号	IOP:0004-6256-152-6-177
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/36196]
专题	中国科学院国家天文台
作者单位	1.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2.IBM T. J. Watson Research Center, 1101 Kitchawan Road, Yorktown Heights, NY 10598, USA; bge@us.ibm.com 3.Pennsylvania State University-Mont Alto, 1 Campus Drive, Mont Alto, PA 17237, USA; kah259@psu.edu 4.Lowell Observatory, 1400 West Mars Hill Road, Flagstaff, AZ 86001, USA; dah@lowell.edu 5.Pontificia Universidad Católica de Chile, Avenida Libertador Bernardo O Higgins 340, Santiago, Región Metropolitana, Chile; hzhang@astro.puc.cl
推荐引用方式 GB/T 7714	Herrmann,Kimberly A.,Hunter,Deidre A.,Zhang,Hong-Xin,et al. MASS-TO-LIGHT VERSUS COLOR RELATIONS FOR DWARF IRREGULAR GALAXIES[J]. The Astronomical Journal,2016,152(6).
APA	Herrmann,Kimberly A.,Hunter,Deidre A.,Zhang,Hong-Xin,&Elmegreen,Bruce G..(2016).MASS-TO-LIGHT VERSUS COLOR RELATIONS FOR DWARF IRREGULAR GALAXIES.The Astronomical Journal,152(6).
MLA	Herrmann,Kimberly A.,et al."MASS-TO-LIGHT VERSUS COLOR RELATIONS FOR DWARF IRREGULAR GALAXIES".The Astronomical Journal 152.6(2016).