TY - GEN
T1 - The strange case of SN 2011ja and its host
AU - Chakraborti, Sayan
AU - Ray, Alak
AU - Smith, Randall
AU - Ryder, Stuart
AU - Yadav, Naveen
AU - Sutaria, Firoza
AU - Dwarkadas, Vikram V.
AU - Chandra, Poonam
AU - Pooley, David
AU - Roy, Rupak
PY - 2014/3/27
Y1 - 2014/3/27
N2 - SN 2001ja was observed twice in three months using the Chandra X-Ray Observatory. The X-ray flux could be due to interaction with the circumstellar medium, perhaps dominated by the reverse shock heated thermal plasma, or from inverse Compton scattering at the forward shock. In both cases, for a steady wind-like circumstellar density profile, the X-ray flux is expected to fall off as a power law or faster. But the flux from the position of SN 2011ja, increased by a factor of three between these observations. In this presentation, we investigated possible reasons, including contamination from other astrophysical sources such as a X-Ray Binary, within the Chandra's resolution, in the host galaxy using our observations, modelling and pre-explosion Chandra/XMM data.
AB - SN 2001ja was observed twice in three months using the Chandra X-Ray Observatory. The X-ray flux could be due to interaction with the circumstellar medium, perhaps dominated by the reverse shock heated thermal plasma, or from inverse Compton scattering at the forward shock. In both cases, for a steady wind-like circumstellar density profile, the X-ray flux is expected to fall off as a power law or faster. But the flux from the position of SN 2011ja, increased by a factor of three between these observations. In this presentation, we investigated possible reasons, including contamination from other astrophysical sources such as a X-Ray Binary, within the Chandra's resolution, in the host galaxy using our observations, modelling and pre-explosion Chandra/XMM data.
KW - circumstellar matter
KW - radio continuum: general
KW - shock waves
KW - Stars: Mass Loss
KW - Supernovae: Individual: SN 2011ja
KW - X-rays: general
UR - http://www.scopus.com/inward/record.url?scp=84897884992&partnerID=8YFLogxK
U2 - 10.1017/S1743921313009733
DO - 10.1017/S1743921313009733
M3 - Conference proceeding contribution
AN - SCOPUS:84897884992
SN - 9781107044777
T3 - IAU symposium
SP - 342
EP - 343
BT - Supernova Environmental Impacts
A2 - Ray, Alak
A2 - McCray, Richard
PB - Cambridge University Press (CUP)
CY - Cambridge
T2 - 296th symposium of the International Astronomical Union
Y2 - 7 January 2013 through 11 January 2013
ER -