The influence of host galaxy morphology on the properties of Type Ia supernovae from the JLA compilation
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- 作者：V. Hennea ; henne-vincent@wanadoo.fr" class="auth_mail" title="E-mail the corresponding author ; M.V. Pruzhinskaya ; a ; b ; pruzhinskaya@gmail.com" class="auth_mail" title="E-mail the corresponding author ; P. Rosneta ; philippe.rosnet@clermont.in2p3.fr" class="auth_mail" title="E-mail the corresponding author ; P.-F. Lé ; geta ; pierre-francois.leget@clermont.in2p3.fr" class="auth_mail" title="E-mail the corresponding author ; E.E.O. Ishidaa ; emille.ishida@clermont.in2p3.fr" class="auth_mail" title="E-mail the corresponding author ; A. Ciullia ; ciulli@clermont.in2p3.fr" class="auth_mail" title="E-mail the corresponding author ; P. Grisa ; philippe.gris@clermont.in2p3.fr" class="auth_mail" title="E-mail the corresponding author ; L.-P. Saysa ; louis-pierre.says@clermont.in2p3.fr" class="auth_mail" title="E-mail the corresponding author ; E. Ganglera ; emmanuel.gangler@clermont.in2p3.fr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Supernovae ; Cosmological parameters
- 刊名：New Astronomy
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：51
- 期：Complete
- 页码：43-50
- 全文大小：864 K
文摘
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We study the influence of host galaxy morphology on LC parameters of the JLA data.
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The α parameter decreases from elliptical/lenticular to late-type spiral galaxies.
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In an old stellar population SNe Ia are fainter after stretch and colour corrections.
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The host galaxy morphology affects the residual dispersion on the Hubble diagram.
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SNe Ia in late-type spiral galaxies are more homogeneous in comparison with others.