Investigating ChaMPlane X-ray sources in the Galactic Bulge with Magellan LDSS2 spectra (2008)
Koenig, Xavier, Grindlay, Jonathan E., Berg, Maureen Van Den, Laycock, Silas, Zhao, Ping, Hong, JaeSub, ...
We have carried out optical and X-ray spectral analyses on a sample of 136 candidate optical counterparts of X-ray sources found in five Galactic-bulge fields included in our Chandra Multi-wavelength...
Hong, JaeSub, Berg, Maureen Van Den, Schlegel, Eric M., Grindlay, Jonathan E., Koenig, Xavier, Laycock, Silas, ...
We describe the X-ray analysis procedure of the on-going Chandra Multiwavelength Plane (ChaMPlane) survey and report the initial results from the analysis of 15 selected anti-Galactic center...
ChaMPlane Optical Survey: Mosaic Photometry (2005)
Zhao, Ping, Grindlay, Jonathan E., Hong, JaeSub, Laycock, Silas, Koenig, Xavier P., Schlegel, Eric M., ...
The ChaMPlane survey to identify and analyze the serendipitous X-ray sources in deep Galactic plane fields incorporates the ChaMPlane Optical Survey, which is one of NOAO's Long-term Survey Programs....
Chandra's Tryst with SN 1995N (2005)
Chandra, Poonam, Ray, Alak, Schlegel, Eric M, Sutaria, Firoza K, Pietsch, Wolfgang
We present the spectroscopic and imaging analysis of Type IIn supernova SN 1995N observed with the Chandra X-Ray Observatory on 2004 March 27.We compare the spectrum obtained from our Chandra...
Chandra's tryst with SN 1995N (2005)
Chandra, Poonam, Ray, Alak, Schlegel, Eric M., Sutaria, Firoza K., Pietsch, Wolfgang
We present the spectroscopic and imaging analysis of a type IIn supernova SN 1995N observed with the Chandra X-ray observatory on 2004 March 27. We compare the spectrum obtained from our Chandra...
Chandra's tryst with SN 1995N (2005)
Chandra, Poonam, Ray, Alak, Schlegel, Eric M., Sutaria, Firoza K., Pietsch, Wolfgang
Chandra's Tryst with SN 1995N (2005)
Chandra, Poonam, Ray, Alak, Schlegel, Eric M, Sutaria, Firoza K, Pietsch, Wolfgang
We present the spectroscopic and imaging analysis of Type IIn supernova SN 1995N observed with the Chandra X-Ray Observatory on 2004 March 27.We compare the spectrum obtained from our Chandra...
A Serendipitous XMM-Newton Observation of the Intermediate Polar WX Pyx (2004)
We briefly describe a serendipitous observation of the little-studied intermediate polar WX Pyx using XMM-Newton. The X-ray spin period is 1557.3 sec, confirming the optical period published in 1996....
New spectral classification technique for X-ray sources: quantile analysis (2004)
Hong, Jaesub, Schlegel, Eric M., Grindlay, Jonathan E.
We present a new technique called "quantile analysis" to classify spectral properties of X-ray sources with limited statistics. The quantile analysis is superior to the conventional approaches such...
Chandra Observations of Associates of $\eta$ Car: II. Spectra (2004)
Evans, Nancy Remage, Schlegel, Eric M., Waldron, Wayne L., Seward, Frederick D., Krauss, Miriam I., Nichols, Joy, ...
The low resolution X-ray spectra around $\eta$ Car covering Tr 16 and part of Tr 14 have been extracted from a Chandra CCD ACIS image. Various analysis techniques have been applied to the spectra...
Chandra ACIS and Newton EPIC Observations of the X-ray Luminous SN1978K in NGC 1313 (2003)
Schlegel, Eric M., Kong, Albert, Kaaret, Philip, DiStefano, Rosanne, Murray, Steve
We describe an observation of the X-ray luminous SN1978K in NGC 1313 using the ACIS detector on Chandra and an archival Newton EPIC observation. The models that provided good fits to the ASCA SIS and...
The Chandra Observation of the IP TX Col (2003)
Schlegel, Eric M., Salinas, Anandi
We present a preliminary look at the serendipitous observation of the intermediate polar TX Col by Chandra. The 52 ksec observation is uninterrupted, providing an opportunity to disentangle the light...
Chandra Observations of Associates of $\eta$ Car: I. Luminosities (2003)
Evans, Nancy Remage, Seward, Frederick D., Krauss, Miriam I., Isobe, Takashi, Nichols, Joy, Schlegel, Eric M., ...
The region around the $\eta$ Car nebula has three OB associations, which contain a Wolf-Rayet star and several massive O3 stars. An early Chandra ACIS-I image was centered on $\eta$ Car and includes...
Upper Limits on the X-ray Emission of "Uranium" Stars (2003)
A paper by Qian & Wasserburg suggests the optical absorption lines of uranium observed in the spectra of ultra-metal-poor stars (defined as [Fe/H] $
Mukai, Koji, Smale, Alan P., Stahle, Caroline K., Schlegel, Eric M., Wijnands, Rudy
MS 1603.6+2600 is a high-latitude X-ray binary with a 111 min orbital period, thought to be either an unusual cataclysmic variable or an unusual low-mass X-ray binary. In an ASCA observation in 1997...
The Luminosity of SN 1999by in NGC 2841 and the Nature of `Peculiar' Type Ia Supernovae (2001)
Garnavich, Peter M., Bonanos, Alceste Z., Krisciunas, Kevin, Jha, Saurabh, Kirshner, Robert P., Schlegel, Eric M., ...
We present UBVRIJHK photometry and optical spectroscopy of the so-called 'peculiar' Type Ia supernova 1999by in NGC 2841. The observations began one week before visual maximum light which is...
A Deep ROSAT HRI Observation of NGC 1313 (2000)
Schlegel, Eric M., Petre, Robert, Colbert, E. J. M., Miller, Scott
We describe a series of observations of NGC 1313 using the ROSAT HRI with a combined exposure time of 183.5 ksec. The observations span an interval between 1992 and 1998; the purpose of observations...
Gaetz, T. J., Butt, Yousaf M., Edgar, Richard J., Eriksen, Kristoffer A., Plucinsky, Paul P., Schlegel, Eric M., ...
We present observations of the young, Oxygen-rich supernova remnant 1E0102.2-7219 taken by the Chandra X-ray Observatory during Chandra's Orbital Activation and Checkout phase. The boundary of the...
X-ray Detection of SN1994W in NGC 4041? (1999)
Optical spectra of SN1994W in NGC 4041 revealed the presence of a dense (N_e > 10^8 cm^-3) circumstellar shell. An observation with the ROSAT HRI detected a source, with a 0.2-2.4 keV luminosity of...
Schlegel, Eric M., Ryder, Stuart, Staveley-Smith, L., Petre, R., Colbert, E., Dopita, M., ...
We update the light curves from the X-ray, optical, and radio bandpasses which we have assembled over the past decade, and present two observations in the ultraviolet using the Hubble Space Telescope...