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UBVRI Light Curves of 44 Type Ia Supernovae
Saurabh Jha, Robert P. Kirshner, Peter Challis +2
We present UBVRI photometry of 44 type-Ia supernovae (SN Ia) observed from 1997 to 2001 as part of a continuing monitoring campaign at the Fred Lawrence Whipple Observatory of the…
Chandra and Hubble Study of a New Transient X-ray Source in M31
Benjamin F. Williams, Michael R. Garcia, Jeffrey E. McClintock +2
We present X-ray and optical observations of a new transient X-ray source in M31 first detected 23-May-2004 at R.A.=00:43:09.940 +/- 0.65'', Dec.=41:23:32.49 +/- 0.66''. The X-ray…
A Potential Supernova Remnant/X-ray Binary Association in M31
Benjamin F. Williams, Robin Barnard, Michael R. Garcia +3
The well-studied X-ray/Optical/Radio supernova remnant DDB 1-15 (CXOM31 J004327.8+411829; r3-63) in M31 has been investigated with archival XMM-Newton and Chandra observations. The…
On the binary nature of 1RXS J162848.1-415241
M. A. P. Torres, M. R. Garcia, D. Steeghs +1
We present spectroscopy of the optical counterpart to 1RXS J162848.1-41524, also known as the microquasar candidate MCQC J162847-4152. All the data indicate that this X-ray source…
Optical Constraints on an X-ray Transient Source in M31
Benjamin F. Williams, Michael R. Garcia, Frank A. Primini +2
We have detected a transient X-ray source in the M31 bulge through a continuing monitoring campaign with the Chandra ACIS-I camera. The source was detected at R.A.=00:42:33.428 +/-…
An X-ray Transient and Optical Counterpart in the M31 Bulge
Benjamin F. Williams, Michael R. Garcia, Jeffrey E. McClintock +3
We have obtained snapshot images of a transient X-ray source in M31 from Chandra ACIS-I and the Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS). The Chandra position…