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Type Ib Supernova M...
Type Ib Supernova Master OT J120451.50+265946.6 : Radio-emitting Shock with Inhomogeneities Crossing through a Dense Shell
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- Chandra, Poonam (författare)
- Stockholms universitet,Institutionen för astronomi,Tata Institute of Fundamental Research, India
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Nayana, A. J. (författare)
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- Björnsson, Claes-Ingvar (författare)
- Stockholms universitet,Institutionen för astronomi
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- Taddia, Francesco (författare)
- Stockholms universitet,Institutionen för astronomi
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- Lundqvist, Peter (författare)
- Stockholms universitet,Institutionen för astronomi
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Ray, Alak K. (författare)
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Shappee, Benjamin J. (författare)
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(creator_code:org_t)
- 2019-05-28
- 2019
- Engelska.
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Ingår i: Astrophysical Journal. - : American Astronomical Society. - 0004-637X .- 1538-4357. ; 877:2
- Relaterad länk:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- We present radio observations of Type Ib supernova (SN) Master OT J120451.50+265946.6. Our low-frequency Giant Metrewave Radio Telescope (GMRT) data, taken when the SN was in the optically thick phase for observed frequencies, reveal inhomogeneities in the structure of the radio-emitting region. The high-frequency Karl G. Jansky Very Large Array data indicate that the shock is crossing through a dense shell between similar to 47 and similar to 87 days. The data >= 100 days onward are reasonably well fit with the inhomogeneous synchrotron self-absorption model. Our model predicts that the inhomogeneities should smooth out at late times. Low-frequency GMRT observations at late epochs will test this prediction. Our findings suggest the importance of obtaining well-sampled wide-band radio data in order to understand the intricate nature of the radio emission from young supernovae.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- circumstellar matter
- radiation mechanisms: non-thermal
- radio continuum: general
- supernovae: general
- supernovae: individual (Master OT J120451.50+265946.6)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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