Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atel.2206....1h&link_type=abstract
The Astronomer's Telegram, #2206
Astronomy and Astrophysics
Astronomy
Optical, Gamma Ray, >Gev, Agn, Quasars
Scientific paper
Longo et al. (ATel #2101) reported a Fermi LAT detection of flaring from the flat-spectrum radio source PMN J2331-2148, of unknown redshift, on 2009 June 26. The optical counterpart of PMN J2331-2148 is visible on the Digitized Sky Survey with position from the USNO B1.0 catalog RA = 23h31m04.03s, Decl.=-21d48'15.3" (J2000.0). We obtained six 10 minute spectra using the Boller & Chivens CCD Spectrograph on the 2.4m Hiltner Telescope of the MDM Observatory on 2009 September 18, covering the wavelength range 3860-7530 Angstroms.
Crotts Arlin P. S.
Halpern Jules P.
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