Radio Supernovae: Circum-Stellar Investigation (C.S.I.) of Supernova Progenitor Stars (2009)
Stockdale, Christopher J., Weiler, Kurt W., Panagia, Nino, Sramek, Richard A., Van Dyk, Schuyler D., Immler, Stefan, ...
Prior to explosion, a supernova progenitor slowly loses significant amounts of its hydrogen envelope in a stellar wind. After the explosion, the blastwave interacts with this wind producing...
Eleven Years of Radio Monitoring of the type IIn Supernova SN 1995N (2009)
Chandra, Poonam, Stockdale, Christopher J., Chevalier, Roger A., Van Dyk, Schuyler D., Ray, Alak, Kelley, Matthew T., ...
We present radio observations of the optically bright Type IIn supernova SN 1995N. We observed the SN at radio wavelengths with the Very Large Array for 11 years. We also observed it at low radio...
Eleven years of radio monitoring of the Type IIn supernova SN 1995N (2008)
Chandra, Poonam, Stockdale, Christopher J., Chevalier, Roger A., Van Dyk, Schuyler D., Ray, Alak, Kelley, Matthew T., ...
We present radio observations of the optically bright Type IIn supernova SN 1995N. We observed the SN at radio wavelengths with the Very Large Array (VLA) for 11 years. We also observed it at low...
Long-Term Radio Monitoring of SN 1993J (2007)
Weiler, Kurt W., Williams, Christopher L., Panagia, Nino, Stockdale, Christopher J., Kelley, Matthew T., Sramek, Richard A., ...
We present our extensive observations of the radio emission from supernova (SN) 1993J, in M81 (NGC 3031), made with the Very Large Array, at 90, 20, 6, 3.6, 2, 1.2, and 0.7 cm, as well as numerous...
Long Term Radio Monitoring of SN 1993J (2007)
Weiler, Kurt W., Williams, Christopher L., Panagia, Nino, Stockdale, Christopher J., Kelley, Matthew T., Sramek, Richard A., ...
We present our observations of the radio emission from supernova (SN) 1993J, in M 81 (NGC 3031), made with the VLA, from 90 to 0.7 cm, as well as numerous measurements from other telescopes. The...
Radio Observations of Supernovae (2007)
Panagia, Nino, Weiler, Kurt W., Van Dyk, Schuyler D., Sramek, Richard A., Stockdale, Christopher J.
Study of radio supernovae over the past 25 years includes two dozen detected objects and more than 100 upper limits. From this work it is possible to identify classes of radio properties, demonstrate...
Light Curves of Radio Supernovae (2007)
Kelley, Matthew T., Stockdale, Christopher J., Weiler, Kurt W., Williams, Christopher L. M., Panagia, Nino, Sramek, Richard A., ...
We present the results from the on-going radio monitoring of recent type II supernovae (SNe), including SNe 2004et, 2004dj, 2002hh, 2001em, and 2001gd. Using the Very Large Array to monitor these...
Recent Type II Radio Supernovae (2007)
Stockdale, Christopher J., Kelley, Matthew T., Weiler, Kurt W., Panagia, Nino, Sramek, Richard A., Marcaide, J. M., ...
We present the results of radio observations, taken primarily with the Very Large Array, of Supernovae 1993J, 2001gd, 2001em, 2002hh, 2004dj, and 2004et. We have fit a parameterized model to the...
The Radio Evolution of SN 2001gd (2007)
Stockdale, Christopher J., Williams, Christopher L., Weiler, Kurt W., Panagia, Nino, Sramek, Richard A., Van Dyk, Schuyler D., ...
We present the results of observations of the radio emission from Supernova 2001gd in NGC 5033 from 2002 February 8 through 2006 September 25. The data were obtained using the Very Large Array at...
Radio Observations of Supernovae (2007)
Panagia, Nino, Weiler, Kurt W., Van Dyk, Schuyler D., Sramek, Richard A., Stockdale, Christopher J.
Study of radio supernovae over the past 25 years includes two dozen detected objects and more than 100 upper limits. From this work it is possible to identify classes of radio properties, demonstrate...
A Search for Radio Emission from Type Ia Supernovae (2006)
Panagia, Nino, Van Dyk, Schuyler D., Weiler, Kurt W., Sramek, Richard A., Stockdale, Christopher J., Murata, Kimberly P.
We present and discuss the radio observations of 27 Type Ia supernovae (SNe Ia) observed over two decades with the Very Large Array. No SN Ia has been detected so far in the radio, implying a very...
Chu, You-Hua, Gruendl, Robert A., Stockdale, Christopher J., Rupen, Michael P., Cowan, John J., Teare, Scott W.
The nature of SN 1961V has been uncertain. Its peculiar optical light curve and slow expansion velocity are similar to those of super-outbursts of luminous blue variables (LBVs), but its nonthermal...
Radio Emission from SN 2001gd in NGC 5033 (2003)
Stockdale, Christopher J., Weiler, Kurt W., Van Dyk, Schuyler D., Montes, Marcos J., Panagia, Nino, Sramek, Richard A., ...
We present the results of monitoring the radio emission from the Type IIb supernova SN 2001gd between 2002 February 8 and 2002 October 28. Most of the data were obtained using the Very Large Array at...
Narrow Lines in Type II Supernovae -- Probing the Circumstellar Nebulae of the Progenitors (2002)
Gruendl, Robert A., Chu, You-Hua, Van Dyk, Schuyler D., Stockdale, Christopher J.
We have carried out a high-dispersion (R~30,000) echelle spectroscopic survey of 16 Type II supernovae (SNe) to search for narrow emission lines from circumstellar nebulae ejected by their massive...
The Radio Recovery of SN 1970G: The Continuing Radio Evolution of SN 1970G (2001)
Stockdale, Christopher J., Goss, W. M., Cowan, John J., Sramek, R. A.
Using the Very Large Array, we have detected radio emission from the site of SN 1970G in the Sc galaxy M101. These observations are 31 years after the supernova event, making SN 1970G the longest...
The Fading Radio Emission from SN 1961V: Evidence for a Type II Peculiar Supernova? (2001)
Stockdale, Christopher J., Rupen, Michael P., Cowan, John J., Chu, You-Hua, Jones, Steven S.
Using the Very Large Array (VLA), we have detected radio emission from the site of SN 1961V in the Sc galaxy NGC 1058. With a peak flux density of 0.063 +/- 0.008 mJy/beam at 6 cm and 0.147 +/- 0.026...
A radio & x-ray search for intermediate-age supernovae : tuning into the oldies / (2001)
Thesis (Ph. D.)--University of Oklahoma, 2001.
Discovery of a Nuclear X-Ray Source in NGC 7331: Evidence for a Massive Black Hole (1998)
Stockdale, Christopher J., Romanishin, W., Cowan, John J.
Using ROSAT, we have made the first deep X-ray observations of NGC 7331, discovering a nuclear X-ray source coincident with the previously determined radio and optical nuclear centers. Positions,...