Type II-P supernovae as standardized candles: Improvements using near-infrared data
We present the first near-infrared Hubble diagram for Type II-P supernovae (SNe), to further explore their value as distance indicators. We use a modified version of the standardized candle method, which relies on the tight correlation between the absolute magnitudes of Type II-P SNe and their expan...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2010
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| _version_ | 1826302809825345536 |
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| author | Maguire, K Kotak, R Smartt, S Pastorello, A Hamuy, M Bufano, F |
| author_facet | Maguire, K Kotak, R Smartt, S Pastorello, A Hamuy, M Bufano, F |
| author_sort | Maguire, K |
| collection | OXFORD |
| description | We present the first near-infrared Hubble diagram for Type II-P supernovae (SNe), to further explore their value as distance indicators. We use a modified version of the standardized candle method, which relies on the tight correlation between the absolute magnitudes of Type II-P SNe and their expansion velocities during the plateau phase. Although our sample contains only 12 II-P SNe and they are necessarily local (z < 0.02), we demonstrate using near-infrared JHK photometry that it may be possible to reduce the scatter in the Hubble diagram to 0.1-0.15 mag. While this is potentially similar to the dispersion seen for Type Ia SNe, we caution that this needs to be confirmed with a larger sample of II-P SNe in the Hubble flow. © 2010 The Authors. Journal compilation © 2010 RAS. |
| first_indexed | 2024-03-07T05:53:04Z |
| format | Journal article |
| id | oxford-uuid:e99108bf-c9c3-4530-b4b8-f5b4d29a61b3 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:53:04Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:e99108bf-c9c3-4530-b4b8-f5b4d29a61b32022-03-27T10:55:14ZType II-P supernovae as standardized candles: Improvements using near-infrared dataJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e99108bf-c9c3-4530-b4b8-f5b4d29a61b3EnglishSymplectic Elements at Oxford2010Maguire, KKotak, RSmartt, SPastorello, AHamuy, MBufano, FWe present the first near-infrared Hubble diagram for Type II-P supernovae (SNe), to further explore their value as distance indicators. We use a modified version of the standardized candle method, which relies on the tight correlation between the absolute magnitudes of Type II-P SNe and their expansion velocities during the plateau phase. Although our sample contains only 12 II-P SNe and they are necessarily local (z < 0.02), we demonstrate using near-infrared JHK photometry that it may be possible to reduce the scatter in the Hubble diagram to 0.1-0.15 mag. While this is potentially similar to the dispersion seen for Type Ia SNe, we caution that this needs to be confirmed with a larger sample of II-P SNe in the Hubble flow. © 2010 The Authors. Journal compilation © 2010 RAS. |
| spellingShingle | Maguire, K Kotak, R Smartt, S Pastorello, A Hamuy, M Bufano, F Type II-P supernovae as standardized candles: Improvements using near-infrared data |
| title | Type II-P supernovae as standardized candles: Improvements using near-infrared data |
| title_full | Type II-P supernovae as standardized candles: Improvements using near-infrared data |
| title_fullStr | Type II-P supernovae as standardized candles: Improvements using near-infrared data |
| title_full_unstemmed | Type II-P supernovae as standardized candles: Improvements using near-infrared data |
| title_short | Type II-P supernovae as standardized candles: Improvements using near-infrared data |
| title_sort | type ii p supernovae as standardized candles improvements using near infrared data |
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