scholarly journals Constraining Type Ia Supernova Delay Time with Spatially Resolved Star Formation Histories

2021 ◽  
Vol 922 (1) ◽  
pp. 15
Author(s):  
Xingzhuo Chen ◽  
Lei Hu ◽  
Lifan Wang
Keyword(s):  
Power Law ◽  
Delay Time ◽  
Likelihood Method ◽  
Host Galaxy ◽  
Power Law Model ◽  
Spatially Resolved ◽  
Type Ia ◽  
Ia Supernovae ◽  
Star Formation Histories ◽  
Grouping Algorithm

Abstract We present the delay time distribution (DTD) estimates of Type Ia supernovae (SNe Ia) using spatially resolved SN Ia host galaxy spectra from MUSE and MaNGA. By employing a grouping algorithm based on k-means and earth mover’s distances (EMDs), we separated the host galaxy stellar population age distributions (SPADs) into spatially distinct regions and used maximum likelihood method to constrain the DTD of SN Ia progenitors. When a power-law model of the form DTD(t) ∝ t s (t > τ) is used, we find an SN rate decay slope s = − 1.41 − 0.33 + 0.32 and a delay time τ = 120 − 83 + 142 Myr . Moreover, we tested other DTD models, such as a broken power-law model and a two-component power-law model, and found no statistically significant support for these alternative models.

scholarly journals The delay time distribution of Type-Ia supernovae in galaxy clusters: the impact of extended star-formation histories

2021 ◽  
Vol 502 (4) ◽  
pp. 5882-5895
Author(s):  
Jonathan Freundlich ◽  
Dan Maoz
Keyword(s):  
Star Formation ◽  
Galaxy Clusters ◽  
Power Law ◽  
Delay Time ◽  
Time Distribution ◽  
Type Ia Supernovae ◽  
Type Ia ◽  
Ia Supernovae ◽  
Star Formation Histories ◽  
Field Galaxy

ABSTRACT The delay time distribution (DTD) of Type-Ia supernovae (SNe Ia) is important for understanding chemical evolution, SN Ia progenitors, and SN Ia physics. Past estimates of the DTD in galaxy clusters have been deduced from SN Ia rates measured in cluster samples observed at various redshifts, corresponding to different time intervals after a presumed initial brief burst of star formation. A recent analysis of a cluster sample at z = 1.13–1.75 confirmed indications from previous studies of lower redshift clusters, that the DTD has a power-law form, DTD(t) = R1(t/Gyr)α, with amplitude R1, at delay $t=1\,\rm Gyr$, several times higher than measured in field-galaxy environments. This implied that SNe Ia are somehow produced in larger numbers by the stellar populations in clusters. This conclusion, however, could have been affected by the implicit assumption that the stars were formed in a single brief starburst at high z. Here, we re-derive the DTD from the cluster SN Ia data, but relax the single-burst assumption. Instead, we allow for a range of star-formation histories and dust extinctions for each cluster. Via MCMC modelling, we simultaneously fit, using stellar population synthesis models and DTD models, the integrated galaxy-light photometry in several bands, and the SN Ia numbers discovered in each cluster. With these more-realistic assumptions, we find a best-fitting DTD with power-law index $\alpha =-1.09_{-0.12}^{+0.15}$, and amplitude $R_1=0.41_{-0.10}^{+0.12}\times 10^{-12}\,{\rm yr}^{-1}\, {\rm M}_\odot ^{-1}$. We confirm a cluster-environment DTD with a larger amplitude than the field-galaxy DTD, by a factor ∼2–3 (at 3.8σ). Cluster and field DTDs have consistent slopes of α ≈ −1.1.

scholarly journals Delay Time Distributions of Type Ia Supernovae from Galaxy and Cosmic Star Formation Histories

2020 ◽  
Vol 890 (2) ◽  
pp. 140 ◽  
Author(s):  
Louis-Gregory Strolger ◽  
Steven A. Rodney ◽  
Camilla Pacifici ◽  
Gautham Narayan ◽  
Or Graur
Keyword(s):  
Star Formation ◽  
Delay Time ◽  
Type Ia Supernovae ◽  
Type Ia ◽  
Ia Supernovae ◽  
Star Formation Histories

Uniformity of (V−Near‐Infrared) Color Evolution of Type Ia Supernovae and Implications for Host Galaxy Extinction Determination

2000 ◽  
Vol 539 (2) ◽  
pp. 658-674 ◽  
Author(s):  
Kevin Krisciunas ◽  
N. C. Hastings ◽  
Karen Loomis ◽  
Russet McMillan ◽  
Armin Rest ◽  
...  
Keyword(s):  
Near Infrared ◽  
Host Galaxy ◽  
Type Ia Supernovae ◽  
Color Evolution ◽  
Type Ia ◽  
Ia Supernovae

scholarly journals Common envelope to explosion delay time of Type Ia supernovae

2019 ◽  
Vol 490 (2) ◽  
pp. 2430-2435 ◽  
Author(s):  
Noam Soker
Keyword(s):  
Delay Time ◽  
Planetary Nebula ◽  
Time Distribution ◽  
Circumstellar Matter ◽  
Type Ia Supernovae ◽  
Common Envelope ◽  
Type Ia ◽  
Explosion Delay ◽  
Ia Supernovae ◽  
Short Times

ABSTRACT I study the rate of Type Ia supernovae (SNe Ia) within about a million years after the assumed common envelope evolution (CEE) that forms the progenitors of these SNe Ia, and find that the population of SNe Ia with short CEE to explosion delay (CEED) time is ≈few × 0.1 of all SNe Ia. I also claim for an expression for the rate of these SNe Ia that occur at short times after the CEE ($t_{\rm CEED} \lesssim 10^6 {~\rm yr}$), which is different from that of the delay time distribution (DTD) billions of years after star formation. This tentatively hints that the physical processes that determine the short CEED time distribution (CEEDTD) are different (at least to some extent) from those that determine the DTD at billions of years. To reach these conclusions I examine SNe Ia that interact with a circumstellar matter (CSM) within months after explosion, so-called SNe Ia-CSM, and the rate of SNe Ia that on a time-scale of tens to hundreds of years interact with a CSM that might have been a planetary nebula, so-called SNe Ia inside a planetary nebula (SNIPs). I assume that the CSM in these populations results from a CEE, and hence this study is relevant mainly to the core-degenerate (CD) scenario, the double-degenerate (DD) scenario, the double-detonation (DDet) scenario with white dwarf companions, and to the CEE-wind channel of the single-degenerate (SD) scenario.

scholarly journals Double CO WD systems from the WD+He subgiant channel and type Ia supernovae

2016 ◽  
Vol 26 (1) ◽  
Author(s):  
Dongdong Liu ◽  
Bo Wang ◽  
Chengyuan Wu
Keyword(s):  
Delay Time ◽  
White Dwarfs ◽  
Significant Contribution ◽  
Type Ia Supernovae ◽  
Theoretical Studies ◽  
Type Ia ◽  
Ia Supernovae ◽  
Degenerate Model

AbstractRecent studies suggested that at least some of the observed SNe Ia originate from the double-degenerate model, which involves the merging of double carbon-oxygen white dwarfs (CO WDs). However, the delay time distributions predicted by previous theoretical studies are inconsistent with the observed SNe Ia at the early epoches of < 1 Gyr and old epoches of > 8 Gyr. Previous studies suggested that the CO WD+He subgiant channel has a significant contribution to the formation of massive double CO WDs, the merging ofwhich may produce SNe Ia. In the presentwork, we added this channel into the double-degenerate model to investigate its influence on the delay time distributions of SNe Ia. We found that the delay time distributions would match better with the observed SNe Ia when the CO WD+He subgiant channel is included in the double-degenerate model.

scholarly journals Binary Paths to Type Ia Supernovae Explosions: the Highlights

2011 ◽  
Vol 7 (S281) ◽  
pp. 341-350
Author(s):  
Lilia Ferrario
Keyword(s):  
Binary System ◽  
Main Channel ◽  
Host Galaxy ◽  
Type Ia Supernovae ◽  
Definitive Answer ◽  
Type Ia ◽  
Nuclear Burning ◽  
External Galaxies ◽  
Pass Through ◽  
Ia Supernovae

AbstractThis symposium was focused on the hunt for the progenitors of Type Ia supernovae (SNe Ia). Is there a main channel for the production of SNe Ia? If so, are these elusive progenitors single degenerate or double degenerate systems? Although most participants seemed to favor the single degenerate channel, there was no general agreement on the type of binary system at play. An observational puzzle that was highlighted was the apparent paucity of supersoft sources in our Galaxy and also in external galaxies. The single degenerate channel (and as it was pointed out, quite possibly also the double degenerate channel) requires the binary system to pass through a phase of steady nuclear burning. However, the observed number of supersoft sources falls short by a factor of up to 100 in explaining the estimated birth rates of SNe Ia. Thus, are these supersoft sources somehow hidden away and radiating at different wavelengths, or are we missing some important pieces of this puzzle that may lead to the elimination of a certain class of progenitor? Another unanswered question concerns the dependence of SNe Ia luminosities on the age of their host galaxy. Several hypotheses were put forward, but none was singled out as the most likely explanation.It is fair to say that at the end of the symposium the definitive answer to the vexed progenitor question remained well and truly wide open.

scholarly journals SDSS-II SUPERNOVA SURVEY: AN ANALYSIS OF THE LARGEST SAMPLE OF TYPE IA SUPERNOVAE AND CORRELATIONS WITH HOST-GALAXY SPECTRAL PROPERTIES

2016 ◽  
Vol 821 (2) ◽  
pp. 115 ◽  
Author(s):  
Rachel C. Wolf ◽  
Chris B. D’Andrea ◽  
Ravi R. Gupta ◽  
Masao Sako ◽  
John A. Fischer ◽  
...  
Keyword(s):  
Spectral Properties ◽  
Host Galaxy ◽  
Type Ia Supernovae ◽  
Type Ia ◽  
Ia Supernovae

scholarly journals The dependence of Type Ia Supernovae salt2 light-curve parameters on host galaxy morphology

2020 ◽  
Vol 499 (4) ◽  
pp. 5121-5135
Author(s):  
M V Pruzhinskaya ◽  
A K Novinskaya ◽  
N Pauna ◽  
P Rosnet
Keyword(s):  
Light Curve ◽  
Host Galaxy ◽  
Type Ia Supernovae ◽  
Distance Modulus ◽  
Early Type ◽  
Late Type ◽  
Hubble Diagram ◽  
Type Ia ◽  
Ia Supernovae ◽  
Galaxy Morphology

ABSTRACT Type Ia Supernovae (SNe Ia) are widely used to measure distances in the Universe. Despite the recent progress achieved in SN Ia standardization, the Hubble diagram still shows some remaining intrinsic dispersion. The remaining scatter in supernova luminosity could be due to the environmental effects that are accounted for as mass step correction in the current cosmological analyses. In this work, we compare the local and global colour (U − V), the local star formation rate, and the host stellar mass to the host galaxy morphology. The observed trends suggest that the host galaxy morphology is a relevant parameter to characterize the SN Ia environment. Therefore, we study the influence of host galaxy morphology on light-curve parameters of SNe Ia from the pantheon cosmological supernova sample. We determine the Hubble morphological type of host galaxies for a subsample of 330 SNe Ia. We confirm that the salt2 stretch parameter x1 depends on the host morphology with the p-value ∼10−14. The supernovae with lower stretch value are hosted mainly by elliptical and lenticular galaxies. No correlation for the salt2 colour parameter c is found. We also examine Hubble diagram residuals for supernovae hosted by ‘early-type’ and ‘late-type’ morphological groups of galaxies. The analysis reveals that the mean distance modulus residual in early-type galaxies is smaller than the one in late-type galaxies, which means that early-type galaxies contain brighter supernovae after stretch and colour corrections. However, we do not observe any difference in the residual dispersion for these two morphological groups. The obtained results are in the line with other analyses showing environmental dependence of SN Ia light-curve parameters and luminosity. We confirm the importance of including a host galaxy parameter into the standardization procedure of SNe Ia for further cosmological studies.

scholarly journals Host Galaxy Mass Combined with Local Stellar Age Improve Type Ia Supernovae Distances

2021 ◽  
Vol 909 (1) ◽  
pp. 28
Author(s):  
B. M. Rose ◽  
D. Rubin ◽  
L. Strolger ◽  
P. M. Garnavich
Keyword(s):  
Host Galaxy ◽  
Type Ia Supernovae ◽  
Type Ia ◽  
Ia Supernovae
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