Imaging and demography of the host galaxies of high-redshift type IA Supernovae

Benjamin F. Williams, Craig J. Hogan, Brian Barris, Pablo Candia, Peter Challis, Alejandro Clocchiatti, Alison L. Coil, Alexei V. Filippenko, Peter Garnavich, Robert P. Kirshner, Stephen T. Holland, Saurabh Jha, Kevin Krisciunas, Bruno Leibundgut, Weidong Li, Thomas Matheson, Jose Maza, Mark M. Phillips, Adam G. Riess, Brian P. SchmidtRobert A. Schommer, R. Chris Smith, Jesper Sollerman, Jason Spyromilio, Christopher Stubbs, Nicholas B. Suntzeff, John L. Tonry

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

We present the results of a study of the host galaxies of high-redshift Type Ia supernovae (SNe Ia). We provide a catalog of 18 hosts of SNe Ia observed with the Hubble Space Telescope (HST) by the High-z Supernova Search Team, including images, scale lengths, measurements of integrated (Hubble-equivalent) BVRIZ photometry in bands where the galaxies are brighter than m ≈ 25 mag, and galactocentric distances of the supernovae. We compare the residuals of SN Ia distance measurements from cosmological fits with measurable properties of the supernova host galaxies that might be expected to correlate with variable properties of the progenitor population, such as host-galaxy color and position of the supernova. We find mostly null results; the current data are generally consistent with no correlations of the distance residuals with host-galaxy properties in the redshift range 0.42 < z < 1.06. Although a subsample of SN hosts shows a formally significant (3 σ) correlation between apparent V-R host color and distance residuals, the correlation is not consistent with the null results from other host colors probed by our largest samples. There is also evidence for the same correlations between SN Ia properties and host type at low redshift and high redshift. These similarities support the current practice of extrapolating properties of the nearby population to high redshifts, pending more robust detections of any correlations between distance residuals from cosmological fits and host properties.

Original languageEnglish (US)
Pages (from-to)2608-2621
Number of pages14
JournalAstronomical Journal
Volume126
Issue number6 1776
DOIs
StatePublished - Dec 2003

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Cosmological parameters
  • Galaxies: high redshift
  • Supernovae: general

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