Spectropolarimetry of SN2011fe (PTF11kly) in M101 at Early Times

Details Spectropolarimetry of SN2011fe (PTF11kly) in M101 at Early Times Spectropolarimetry of SN2011fe (PTF11kly) in M101 at Early Times

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3612....1s&link_type=abstract

The Astronomer's Telegram, #3612

Astronomy and Astrophysics

Astronomy

1

Optical, Supernovae, Transient

Scientific paper

We have obtained spectropolarimetry of the young Type Ia supernova SN2011fe (PTF11kly) using the SPOL spectropolarimeter mounted on the Bok 90-inch telescope at Kitt Peak. The data were obtained on the night of August 29 UT, covering the wavelength range 4000--7550 A with roughly 20 A resolution. The measured degree of polarization is wavelength-dependent. The red continuum has a polarization of approximately 0.2%, while higher degrees of polarization of 0.2%-0.3% occur in parts of the spectrum also exhibiting broad absorption troughs, including Si II 6355.

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