SIMBAD references

2018ApJ...854...55Y - Astrophys. J., 854, 55-55 (2018/February-2)

Mapping circumstellar matter with polarized light: the case of supernova 2014J in M82.

YANG Y., WANG L., BAADE D., BROWN P.J., CIKOTA A., CRACRAFT M., HOFLICH P.A., MAUND J.R., PATAT F., SPARKS W.B., SPYROMILIO J., STEVANCE H.F., WANG X. and WHEELER J.C.

Abstract (from CDS):

Optical polarimetry is an effective way of probing the environment of a supernova for dust. We acquired linear HST ACS/WFC polarimetry in bands F475W, F606W, and F775W of the supernova (SN) 2014J in M82 at six epochs from ∼277 days to ∼1181 days after the B-band maximum. The polarization measured at day 277 shows conspicuous deviations from other epochs. These differences can be attributed to at least ∼10–6M of circumstellar dust located at a distance of ∼5×1017cm from the SN. The scattering dust grains revealed by these observations seem to be aligned with the dust in the interstellar medium that is responsible for the large reddening toward the supernova. The presence of this circumstellar dust sets strong constraints on the progenitor system that led to the explosion of SN 2014J; however, it cannot discriminate between single- and double-degenerate models.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): circumstellar matter - dust, extinction - polarization - supernovae: individual: SN 2014J

Simbad objects: 18

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2021.06.17-09:49:20

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