The Optical Counterpart of SWIFT J195456.7+261301

Details The Optical Counterpart of SWIFT J195456.7+261301 The Optical Counterpart of SWIFT J195456.7+261301

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atel.1119....1w&link_type=abstract

The Astronomer's Telegram, #1119

Astronomy and Astrophysics

Astronomy

Optical, Transients, Stars

Scientific paper

F.M. Walter (Stony Brook University) and H.E. Bond (STScI) obtained an low dispersion (R=2000) blue (3700-5300A) spectrum of the star 2.2" from the position of SWIFT J195456.7+261301 (ATEL #1103) at 2007 21 June 0630 UT. The spectrum was obtained with the SMARTS 1.5m RC spectrograph at Cerro Tololo. Conditions were thin clouds; the spectrum is noisy. The spectral type is about K0; the chromospheric Ca II H & K lines show prominent emission reversals.

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