HOST GALAXY PROPERTIES AND HUBBLE RESIDUALS OF TYPE Ia SUPERNOVAE FROM THE NEARBY SUPERNOVA FACTORY

	HOST GALAXY PROPERTIES AND HUBBLE RESIDUALS OF TYPE Ia SUPERNOVAE FROM THE NEARBY SUPERNOVA FACTORY
	Childress, M.1,2,3; Aldering, G.1; Antilogus, P.4; Aragon, C.1; Bailey, S.1; Baltay, C.5; Bongard, S.4; Buton, C.6; Canto, A.4; Cellier-Holzem, F.4
刊名	ASTROPHYSICAL JOURNAL
	2013-06-20
卷号	770 期号:2
关键词	dark energy supernovae: general
英文摘要	We examine the relationship between Type Ia supernova (SN Ia) Hubble residuals and the properties of their host galaxies using a sample of 115 SNe Ia from the Nearby Supernova Factory. We use host galaxy stellar masses and specific star formation rates fitted from photometry for all hosts, as well as gas-phase metallicities for a subset of 69 star-forming (non-active galactic nucleus) hosts, to show that the SN Ia Hubble residuals correlate with each of these host properties. With these data we find new evidence for a correlation between SN Ia intrinsic color and host metallicity. When we combine our data with those of other published SN Ia surveys, we find the difference between mean SN Ia brightnesses in low- and high-mass hosts is 0.077 +/- 0.014 mag. When viewed in narrow (0.2 dex) bins of host stellar mass, the data reveal apparent plateaus of Hubble residuals at high and low host masses with a rapid transition over a short mass range (9.8 <= log(M*/M-circle dot) <= 10.4). Although metallicity has been a favored interpretation for the origin of the Hubble residual trend with host mass, we illustrate how dust in star-forming galaxies and mean SN Ia progenitor age both evolve along the galaxy mass sequence, thereby presenting equally viable explanations for some or all of the observed SN Ia host bias.
收录类别	SCI
语种	英语
WOS记录号	WOS:000320111200026
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/5962]
专题	国家天文台_空间科学研究部
作者单位	1.Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA 2.Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA 3.Australian Natl Univ, Mt Stromlo Observ, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia 4.Univ Paris 07, Univ Paris 06, Lab Phys Nucl & Hautes Energies, CNRS,IN2P3, F-75252 Paris 05, France 5.Yale Univ, Dept Phys, New Haven, CT 06250 USA 6.Univ Bonn, Inst Phys, D-53115 Bonn, Germany 7.Univ Lyon, F-69622 Lyon, France 8.Univ Lyon 1, F-69622 Villeurbanne, France 9.CNRS, IN2P3, Inst Phys Nucl Lyon, F-75700 Paris, France 10.Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Cosmol Ctr, Computat Res Div, Berkeley, CA 94720 USA
推荐引用方式 GB/T 7714	Childress, M.,Aldering, G.,Antilogus, P.,et al. HOST GALAXY PROPERTIES AND HUBBLE RESIDUALS OF TYPE Ia SUPERNOVAE FROM THE NEARBY SUPERNOVA FACTORY[J]. ASTROPHYSICAL JOURNAL,2013,770(2).
APA	Childress, M..,Aldering, G..,Antilogus, P..,Aragon, C..,Bailey, S..,...&Wu, C..(2013).HOST GALAXY PROPERTIES AND HUBBLE RESIDUALS OF TYPE Ia SUPERNOVAE FROM THE NEARBY SUPERNOVA FACTORY.ASTROPHYSICAL JOURNAL,770(2).
MLA	Childress, M.,et al."HOST GALAXY PROPERTIES AND HUBBLE RESIDUALS OF TYPE Ia SUPERNOVAE FROM THE NEARBY SUPERNOVA FACTORY".ASTROPHYSICAL JOURNAL 770.2(2013).