Nearby supernova host galaxies from the CALIFA Survey: I. Sample, data analysis, and correlation to star-forming regions
We use optical integral field spectroscopy (IFS) of nearby supernova (SN) host galaxies provided by the Calar Alto Legacy Integral Field Area (CALIFA) Survey with the goal of finding correlations in the environmental parameters at the location of different SN types. In this first study of a series w...
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Veröffentlicht in: | Astronomy and astrophysics (Berlin) 2014-12, Vol.572, p.1-24 |
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creator | Galbany, L Stanishev, V Mourao, A M Rodrigues, M Flores, H Garcia-Benito, R Mast, D Mendoza, M A Sanchez, S F Badenes, C |
description | We use optical integral field spectroscopy (IFS) of nearby supernova (SN) host galaxies provided by the Calar Alto Legacy Integral Field Area (CALIFA) Survey with the goal of finding correlations in the environmental parameters at the location of different SN types. In this first study of a series we focus on the properties related with star formation (SF). We recover the sequence in association of different SN types to the star-forming regions by using several indicators of the ongoing and recent SF related to both the ionized gas and the stellar populations. We estimate that the low-mass galaxies produce ten times fewer SNe Ia and three times fewer CC SNe than the high-mass group. Therefore the ratio between the number of CC SNe and SNe Ia is expected to increase with decreasing galaxy mass. CC SNe tend to explode at positions with younger stellar populations than the galaxy average, but the galaxy properties at SNe Ia locations are one average the same as the global galaxy properties. |
doi_str_mv | 10.1051/0004-6361/201424717 |
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Sample, data analysis, and correlation to star-forming regions</title><source>Bacon EDP Sciences France Licence nationale-ISTEX-PS-Journals-PFISTEX</source><source>EDP Sciences</source><source>EZB-FREE-00999 freely available EZB journals</source><creator>Galbany, L ; Stanishev, V ; Mourao, A M ; Rodrigues, M ; Flores, H ; Garcia-Benito, R ; Mast, D ; Mendoza, M A ; Sanchez, S F ; Badenes, C</creator><creatorcontrib>Galbany, L ; Stanishev, V ; Mourao, A M ; Rodrigues, M ; Flores, H ; Garcia-Benito, R ; Mast, D ; Mendoza, M A ; Sanchez, S F ; Badenes, C ; the CALIFA Collaboration</creatorcontrib><description>We use optical integral field spectroscopy (IFS) of nearby supernova (SN) host galaxies provided by the Calar Alto Legacy Integral Field Area (CALIFA) Survey with the goal of finding correlations in the environmental parameters at the location of different SN types. In this first study of a series we focus on the properties related with star formation (SF). We recover the sequence in association of different SN types to the star-forming regions by using several indicators of the ongoing and recent SF related to both the ionized gas and the stellar populations. We estimate that the low-mass galaxies produce ten times fewer SNe Ia and three times fewer CC SNe than the high-mass group. Therefore the ratio between the number of CC SNe and SNe Ia is expected to increase with decreasing galaxy mass. 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source | Bacon EDP Sciences France Licence nationale-ISTEX-PS-Journals-PFISTEX; EDP Sciences; EZB-FREE-00999 freely available EZB journals |
subjects | Astronomy Galaxies Integral field spectroscopy Legacy Position (location) Star formation Stellar populations Supernovas |
title | Nearby supernova host galaxies from the CALIFA Survey: I. Sample, data analysis, and correlation to star-forming regions |
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