Jean Cottam

Non-Detection of Gravitationally Redshifted Absorption Lines in the X-ray Burst Spectra of GS 1826-24 (2007)

Kong, Albert K. H., Miller, Jon M., Mendez, Mariano, Cottam, Jean, Lewin, Walter H. G., Paerels, Frederik, ...

During a 200 ks observation with the XMM-Newton Reflection Grating Spectrometer, we detected 16 type-I X-ray bursts from GS 1826-24. We combined the burst spectra in an attempt to measure the...

High-resolution X-ray spectroscopy of the ultracompact LMXB pulsar 4U 1626-67 (2006)

Krauss, Miriam I., Schulz, Norbert S., Chakrabarty, Deepto, Juett, Adrienne M., Cottam, Jean

[abridged] We report results from four recent observations of the ultracompact LMXB pulsar 4U 1626-67. All the observations obtained high-resolution X-ray spectra of the system, two from the Chandra...

Suzaku discovery of iron absorption lines in outburst spectra of the X-ray transient 4U 1630-472 (2006)

Kubota, Aya, Dotani, Tadayasu, Cottam, Jean, Kotani, Taro, Done, Chris, Ueda, Yoshihiro, ...

We present the results of six Suzaku observations of the recurrent black hole transient 4U1630-472 during its decline from outburst from February 8 to March 23 in 2006. All observations show the...

Spectral and Timing Properties of the Low-mass X-ray Binary 4U 0614+09 with XMM-Newton (2002)

Mendez, M., Cottam, Jean, Paerels, F.

4U 0614+09 is a low-mass X-ray binary with a weakly magnetized neutron star primary. It shows variability on time scales that range from years down to ~0.8 milliseconds. Before the Chandra and...

High-Resolution X-Ray Spectroscopy of the Accretion Disk Corona Source 4U 1822-37 (2001)

Cottam, Jean, Sako, Masao, Kahn, Steven M., Paerels, Frits, Liedahl, Duane A.

We present a preliminary analysis of the X-ray spectrum of the accretion disk corona source, 4U 1822-37, obtained with the High Energy Transmission Grating Spectrometer onboard the Chandra X-ray...

The development of the Reflection Grating Spectrometer on board the XMM-Newton Observatory and its application to the study of accretion-powered sources (2001)

Cottam, Jean

The Reflection Grating Spectrometer on board the European Space Agency's XMM-Newton Observatory is the main subject of the thesis. It was designed to provide high-throughput, high-resolution...

First XMM-Newton observations of a cataclysmic variable II: the X-ray spectrum of OY Car (2000)

Ramsay, Gavin, Cordova, France, Cottam, Jean, Mason, Keith, Much, Rudi, Osborne, Julian, ...

We present XMM-Newton X-ray spectra of the disc accreting cataclysmic variable OY Car, which were obtained during the performance verification phase of the mission. These data were taken 4 days after...

The Chandra Iron-L X-Ray Line Spectrum of Capella (2000)

Behar, Ehud, Cottam, Jean, Kahn, Steven M.

An analysis of the iron L-shell emission in the publicly available spectrum of the Capella binary system, as obtained by the High Energy Transmission Grating Spectrometer on board the Chandra X-ray...

High Resolution Spectroscopy of the X-ray Photoionized Wind in Cygnus X-3 with the Chandra High Energy Transmission Grating Spectrometer (2000)

Paerels, Frits, Cottam, Jean, Sako, Masao, Liedahl, Duane A., Brinkman, A. C., ...

We present a preliminary analysis of the 1--10 keV spectrum of the massive X-ray binary Cyg X-3, obtained with the High Energy Transmission Grating Spectrometer on the Chandra X-ray Observatory. The...