The dependence of Type Ia Supernovae luminosities on their host galaxies

Sullivan, M.; Conley, A.; Howell, D. A.; Neill, James D.; Astier, P.; Balland, C.; Basa, S.; Carlberg, R. G.; Fouchez, D.; Guy, J.; Hardin, D.; Hook, I. M.; Pain, R.; Palanque-Delabrouille, N.; Perrett, K.; Pritchet, C. J.; Regnault, Nicolas; Rich, J.; Ruhlmann-Kleider, V.; Baumont, S.; Hsiao, E. Y.; Kronborg, T.; Lidman, C.; Perlmutter, S.; Walker, E. S.

doi:10.1111/j.1365-2966.2010.16731.x

Cited by 320 publications

(302 citation statements)

References 94 publications

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“…This difference could be a reflection of different kinds of dust along the line of sight to the supernova (e.g., circumstellar dust), but it could also arise from intrinsic color differences among SNe Ia with similar light curve shapes, which would reduce the inferred R V if they are assumed to arise from reddening. Supporting the latter idea, the distribution of SN colors shows little dependence on host galaxy properties (Kessler et al, 2009;Sullivan et al, 2010), while such dependence might be expected if the color distribution is strongly affected by dust. Chotard et al (2011), using spectroscopic indicators of luminosity in nearby SNe, infer an extinction law with R V = 2.8 ± 0.3, consistent with the Galactic value.…”

Section: The Current State Of Playmentioning

confidence: 61%

“…This breadth of host conditions provides a laboratory for the investigation of the evolution of SNe Ia as distance indicators. Recently such an effect was found and calibrated in the form of a modest, 0.03 mag dex −1 relationship between host galaxy stellar mass (a likely tracer of metallicity) and calibrated SN Ia magnitude (Kelly et al 2010;Lampeitl et al 2010;Sullivan et al 2010;see Hicken et al [2009b] for an analysis with host morphology and Hayden et al [2012] for an analysis that incorporates star formation rate in an attempt to isolate metallicity). At the level of precision enabled by current surveys, it is necessary to correct for this effect , but the uncertainty in the correction is not a limiting systematic.…”

Section: Systematic Uncertainties and Strategies For Ameliorationmentioning

confidence: 99%

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Observational probes of cosmic acceleration

et al. 2013

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The accelerating expansion of the universe is the most surprising cosmological discovery in many decades, implying that the universe is dominated by some form of "dark energy" with exotic physical properties, or that Einstein's theory of gravity breaks down on cosmological scales. The profound implications of cosmic acceleration have inspired ambitious efforts to understand its origin, with experiments that aim to measure the history of expansion and growth of structure with percent-level precision or higher. We review in detail the four most well established methods for making such measurements: Type Ia supernovae, baryon acoustic oscillations (BAO), weak gravitational lensing, and the abundance of galaxy clusters. We pay particular attention to the systematic uncertainties in these techniques and to strategies for controlling them at the level needed to exploit "Stage IV" dark energy facilities such as BigBOSS, LSST, Euclid, and WFIRST. We briefly review a number of other approaches including redshift-space distortions, the Alcock-Paczynski effect, and direct measurements of the Hubble constant H 0 . We present extensive forecasts for constraints on the dark energy equation of state and parameterized deviations from General Relativity, achievable with Stage III and Stage IV experimental programs that incorporate supernovae, BAO, weak lensing, and cosmic microwave background data. We also show the level of precision required for clusters or other methods to provide constraints competitive with those of these fiducial programs. We emphasize the value of a balanced program that employs several of the most powerful methods in combination, both to cross-check systematic uncertainties and to take advantage of complementary information. Surveys to probe cosmic acceleration produce data sets that support a wide range of scientific investigations, and they continue the longstanding astronomical tradition of mapping the universe in ever greater detail over ever larger scales.

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Section: The Current State Of Playmentioning

confidence: 61%

Section: Systematic Uncertainties and Strategies For Ameliorationmentioning

confidence: 99%

Observational probes of cosmic acceleration

et al. 2013

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“…However, the intrinsic color variations of SNe Ia have not yet been fully understood. Several suggestions have been made for additional parameters: metallicity (Gallagher et al 2005;Höflich et al 2010), high-velocity spectral features, spectral flux ratios (Bailey et al 2009), and the mass and/or the morphological type of the host galaxy (Kelly et al 2010;Sullivan et al 2010). An interesting possibility for the origin of the diverse properties of SNe Ia was recently suggested by Kasen et al (2009) theoretically and by Maeda et al (2011) observationally, namely an asymmetry in the SN explosion combined with the observer viewing angle.…”

Section: Sne Iamentioning

confidence: 99%

Supernovae and Gaia

Altavilla

Botticella²,

Turatto³

2012

Astrophys Space Sci

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Despite decades of dedicated efforts there are still basic questions to answer with regard to Supernova progenitor systems and explosion mechanisms. In particular, in the last years a number of exceptionally bright objects and extremely faint events have demonstrated an unexpected large Supernova variety.The large number of Supernovae candidates at different redshifts provided by the next generation surveys, from ground and space, will allow to reach a better insight of the Supernova events in all their flavours. In particular it will be the possible to assess the systematics of type Ia Supernovae as distance indicator at any redshift.The Gaia astrometric mission is expected to discover a huge number of transient events, including Supernovae, which will be immediately disseminated to the astronomical community by a transients alert system for a suitable follow up.

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“…Furthermore, even for SN Ia, which arise from the thermonuclear explosion of a white dwarf at or near the Chandraskhar mass limit in a binary system, host galaxy studies have uncovered trends for SN Ia luminosity with host galaxy morphology (e.g., Hamuy et al 1996) and mass (e.g., Kelly et al 2010;Sullivan et al 2010), where more luminous SN Ia tend to be in more luminous and (assuming the luminosity-metallicity relationship for galaxies) metalrich galaxies, which is consistent with measured metallicity studies (Gallagher et al 2008). However, for SN Ia with their long delay times (200 Million yrs to a few Gigayears, e.g., Maoz 2010) and the associated large offsets between birth and explosion sites, it is not clear whether measuring the gas-phase metallicity (which reflects that of the currently starforming gas) at the SN position really reflects the natal metallicity of the old progenitor (Bravo & Badenes 2011).…”

Section: Sn and Grb Host Metallicity Measurements As A Rapidly Expandmentioning

confidence: 99%

Stellar Forensics with the Supernova‐GRB Connection

Modjaz¹

2011

Reviews in Modern Astronomy

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Long-duration gamma-ray bursts (GRBs) and Type Ib/c Supernovae (SNe Ib/c) are amongst nature's most magnificent explosions. While GRBs launch relativistic jets, SNe Ib/c are core-collapse explosions whose progenitors have been stripped of their hydrogen and helium envelopes. Yet for over a decade, one of the key outstanding questions is which conditions lead to each kind of explosion and death in massive stars. Determining the fates of massive stars is not only a vibrant topic in itself, but also impacts using GRBs as star formation indicators over distances of up to 13 billion light-years and for mapping the chemical enrichment history of the universe. This article reviews a number of comprehensive observational studies that probe the progenitor environments, their metallicities and the explosion geometries of SN with and without GRBs, as well as the emerging field of SN environmental studies. Furthermore, it discusses SN 2008D/XRT 080109 which was discovered serendipitously with the Swift satellite via its X-ray emission from shock breakout, and which has generated great interest amongst both observers and theorists while illustrating a novel technique for stellar forensics. The article concludes with an outlook on how the most promising venues of research -with the many existing and upcoming large-scale surveys such as the Palomar Transient Factory and LSST -will shed new light on the diverse deaths of massive stars.

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The dependence of Type Ia Supernovae luminosities on their host galaxies

Cited by 320 publications

References 94 publications

Observational probes of cosmic acceleration

Observational probes of cosmic acceleration

Supernovae and Gaia

Stellar Forensics with the Supernova‐GRB Connection

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