The University of Southampton
University of Southampton Institutional Repository

Probing the Progenitors of Type Ia Supernovae using circumstellar material interaction signatures

Probing the Progenitors of Type Ia Supernovae using circumstellar material interaction signatures
Probing the Progenitors of Type Ia Supernovae using circumstellar material interaction signatures
This work aims to study different probes of Type Ia supernova progenitors that have been suggested to be linked to the presence of circumstellar material (CSM). In particular, we have investigated, for the first time, the link between narrow blueshifted NaID absorption profiles and the presence and strength of the broad high-velocity CaII near infrared triplet absorption features seen in Type Ia supernovae around maximum light. With the probes exploring different distances from the supernova; NaID > 10$^{17}$cm, high-velocity CaII features < 10$^{15}$cm. For this, we have used a new intermediate-resolution X-shooter spectral sample of 15 Type Ia supernovae. We do not identify a link between these two probes, implying either that, one (or both) is not physically related to the presence of CSM or that the occurrence of CSM at the distance explored by one probe is not linked to its presence at the distance probed by the other. However, the previously identified statistical excess in the presence of blueshifted (over redshifted) NaID absorption is confirmed in this sample at high significance and is found to be stronger in Type Ia supernovae hosted by late-type galaxies. This excess is difficult to explain as being from an interstellar-medium origin as has been suggested by some recent modelling, as such an origin is not expected to show a bias for blueshifted absorption. However, a circumstellar origin for these features also appears unsatisfactory based on our new results given the lack of link between the two probes of CSM investigated.
Astrophysics - High Energy Astrophysical Phenomena
1365-2966
Clark, Peter
e4cbe61d-74f4-4f16-b1ac-7c6d2ba2fb40
Maguire, Kate
bff26e2d-9727-471e-aa6f-c88e11a2b1a1
Bulla, Mattia
379641d2-fa89-4462-8a2d-b32f3b6b28df
Galbany, Lluís
53211706-78b6-4666-b078-e19b0273a513
Sullivan, Mark
2f31f9fa-8e79-4b35-98e2-0cb38f503850
Anderson, Joseph P.
d3fb497e-09dd-4806-a96e-e5696f80cb26
Smartt, Stephen J.
148257f7-efab-459e-b932-228db4e2b1d0
Clark, Peter
e4cbe61d-74f4-4f16-b1ac-7c6d2ba2fb40
Maguire, Kate
bff26e2d-9727-471e-aa6f-c88e11a2b1a1
Bulla, Mattia
379641d2-fa89-4462-8a2d-b32f3b6b28df
Galbany, Lluís
53211706-78b6-4666-b078-e19b0273a513
Sullivan, Mark
2f31f9fa-8e79-4b35-98e2-0cb38f503850
Anderson, Joseph P.
d3fb497e-09dd-4806-a96e-e5696f80cb26
Smartt, Stephen J.
148257f7-efab-459e-b932-228db4e2b1d0

Clark, Peter, Maguire, Kate, Bulla, Mattia, Galbany, Lluís, Sullivan, Mark, Anderson, Joseph P. and Smartt, Stephen J. (2021) Probing the Progenitors of Type Ia Supernovae using circumstellar material interaction signatures. Monthly Notices of the Royal Astronomical Society, 507. (doi:10.1093/mnras/stab2038).

Record type: Article

Abstract

This work aims to study different probes of Type Ia supernova progenitors that have been suggested to be linked to the presence of circumstellar material (CSM). In particular, we have investigated, for the first time, the link between narrow blueshifted NaID absorption profiles and the presence and strength of the broad high-velocity CaII near infrared triplet absorption features seen in Type Ia supernovae around maximum light. With the probes exploring different distances from the supernova; NaID > 10$^{17}$cm, high-velocity CaII features < 10$^{15}$cm. For this, we have used a new intermediate-resolution X-shooter spectral sample of 15 Type Ia supernovae. We do not identify a link between these two probes, implying either that, one (or both) is not physically related to the presence of CSM or that the occurrence of CSM at the distance explored by one probe is not linked to its presence at the distance probed by the other. However, the previously identified statistical excess in the presence of blueshifted (over redshifted) NaID absorption is confirmed in this sample at high significance and is found to be stronger in Type Ia supernovae hosted by late-type galaxies. This excess is difficult to explain as being from an interstellar-medium origin as has been suggested by some recent modelling, as such an origin is not expected to show a bias for blueshifted absorption. However, a circumstellar origin for these features also appears unsatisfactory based on our new results given the lack of link between the two probes of CSM investigated.

Other
pdf - Accepted Manuscript
Available under License Creative Commons Attribution.
Download (1MB)
Text
stab2038 - Version of Record
Available under License Creative Commons Attribution.
Download (2MB)

More information

Published date: 16 July 2021
Keywords: Astrophysics - High Energy Astrophysical Phenomena

Identifiers

Local EPrints ID: 454445
URI: http://eprints.soton.ac.uk/id/eprint/454445
ISSN: 1365-2966
PURE UUID: b128a9a3-d25c-4951-912d-e788b2f7d3ad
ORCID for Mark Sullivan: ORCID iD orcid.org/0000-0001-9053-4820

Catalogue record

Date deposited: 09 Feb 2022 17:44
Last modified: 17 Mar 2024 03:30

Export record

Altmetrics

Contributors

Author: Peter Clark
Author: Kate Maguire
Author: Mattia Bulla
Author: Lluís Galbany
Author: Mark Sullivan ORCID iD
Author: Joseph P. Anderson
Author: Stephen J. Smartt

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×