Search Results - "Snowden, Steven L."

The Missing Metal Problem in Galaxy Clusters: Characterizing the Early Enrichment Population by Blackwell, Anne E., Bregman, Joel N., Snowden, Steven L.

“…Rich and poor galaxy clusters have the same measured halo metallicity, 0.35–0.4 Z ⊙ , even though they are an order of magnitude apart in stellar fraction, M *…”
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XMM-Newton Observations of MBM 12: More Constraints on the Solar Wind Charge Exchange and Local Bubble Emissions by Koutroumpa, Dimitra, Smith, Randall K, Edgar, Richard J, Kuntz, Kip D, Plucinsky, Paul P, Snowden, Steven L

“…We present the first analysis of an XMM-Newton observation of the nearby molecular cloud MBM 12. We find that in the direction of MBM 12 the total O VII (0.57…”
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OMCat : Catalog of Serendipitous Sources Detected with the XMM-Newton Optical Monitor by KUNTZ, K. D, HARRUS, Ilana, MCGLYNN, Thomas A, MUSHOTZKY, Richard F, SNOWDEN, Steven L

“…The Optical Monitor Catalog of serendipitous sources (OMCat) contains entries for every source detected in the publicly available XMM-Newton Optical Monitor…”
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The Nuclear Spectral Energy Distribution of NGC 4395, the Least Luminous Type 1 Seyfert Galaxy by Moran, Edward C., Filippenko, Alexei V., Ho, Luis C., Shields, Joseph C., Belloni, Tomaso, Comastri, Andrea, Snowden, Steven L., Sramek, Richard A.

“…We present X‐ray (ROSAT), infrared, and radio observations of NGC 4395, which harbors the optically least luminous type 1 Seyfert nucleus discovered thus far…”
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THE STRUCTURE OF THE LOCAL HOT BUBBLE by Liu, W., Chiao, M., Collier, M. R., Cravens, T., Galeazzi, M., Koutroumpa, D., Kuntz, K. D., Lallement, R., Lepri, S. T., McCammon, D., Morgan, K., Porter, F. S., Snowden, S. L., Thomas, N. E., Uprety, Y., Ursino, E., Walsh, B. M.

“…ABSTRACT Diffuse X-rays from the Local Galaxy (DXL) is a sounding rocket mission designed to quantify and characterize the contribution of Solar Wind Charge…”
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Imaging Plasma Density Structures in the Soft X-Rays Generated by Solar Wind Charge Exchange with Neutrals by Sibeck, David G., Allen, R., Aryan, H., Bodewits, D., Brandt, P., Branduardi-Raymont, G., Brown, G., Carter, J. A., Collado-Vega, Y. M., Collier, M. R., Connor, H. K., Cravens, T. E., Ezoe, Y., Fok, M.-C., Galeazzi, M., Gutynska, O., Holmström, M., Hsieh, S.-Y., Ishikawa, K., Koutroumpa, D., Kuntz, K. D., Leutenegger, M., Miyoshi, Y., Porter, F. S., Purucker, M. E., Read, A. M., Raeder, J., Robertson, I. P., Samsonov, A. A., Sembay, S., Snowden, S. L., Thomas, N. E., von Steiger, R., Walsh, B. M., Wing, S.

“…Both heliophysics and planetary physics seek to understand the complex nature of the solar wind's interaction with solar system obstacles like Earth's…”
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X-rays from solar system objects by Bhardwaj, Anil, Elsner, Ronald F., Randall Gladstone, G., Cravens, Thomas E., Lisse, Carey M., Dennerl, Konrad, Branduardi-Raymont, Graziella, Wargelin, Bradford J., Hunter Waite, J., Robertson, Ina, Østgaard, Nikolai, Beiersdorfer, Peter, Snowden, Steven L., Kharchenko, Vasili

“…During the last few years our knowledge about the X-ray emission from bodies within the solar system has significantly improved. Several new solar system…”
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A Lunar Occultation of the Dust-Scattering Halo Around GX 5-1 Observed with ROSAT by Predehl, Peter, Jürgen H. M. M. Schmitt, Snowden, Steven L., Trümper, Joachim

“…The x-ray source GX 5-1 in the galactic bulge has been observed with the position-sensitive proportional counter onboard the Rontgen satellite (ROSAT) during…”
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OMCat: Catalog of Serendipitous Sources Detected with theXMM-NewtonOptical Monitor by Kuntz, K. D., Harrus, Ilana, McGlynn, Thomas A., Mushotzky, Richard F., Snowden, Steven L.

“…The Optical Monitor Catalog of serendipitous sources (OMCat) contains entries for every source detected in the publicly availableXMM-NewtonOptical Monitor (OM)…”
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The Missing Metal Problem in Galaxy Clusters: Characterizing the Early Enrichment Population by Blackwell, Anne E, Bregman, Joel N, Snowden, Steven L

“…Rich and poor galaxy clusters have the same measured halo metallicity, 0.35-0.4 $Z_\odot$, even though they are an order of magnitude apart in stellar…”
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ROSAT Survey Observations of the Monogem Ring by Plucinsky, Paul P., Snowden, Steven L., Aschenbach, Bernd, Egger, Roland, Edgar, Richard J., McCammon, Dan

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Uncovering A Supernova Remnant Hidden Near LMC X-1 by Chu, You-Hua, Kennicutt, Robert C., Snowden, Steven L., Smith, R. Chris, Williams, Rosa Murphy, Bomans, Dominik J.

“…In a kinematic study of LMC H ii regions, we serendipitously found a fast-expanding (velocity offsets up to ~ 200 kms⁻¹) shell in the northern lobe of the…”
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OMCat: Catalogue of Serendipitous Sources Detected with the XMM-Newton Optical Monitor by Kuntz, K. D, Harrus, Ilana, McGlynn, Thomas A, Mushotzky, Richard F, Snowden, Steven L

“…The Optical Monitor Catalogue of serendipitous sources (OMCat) contains entries for every source detected in the publicly available XMM-Newton Optical Monitor…”
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X-rays from solar system objects by Bhardwaj, Anil, Elsner, Ronald F, Gladstone, G. Randall, Cravens, Thomas E, Lisse, Carey M, Dennerl, Konrad, Branduardi-Raymont, Graziella, Wargelin, Bradford J, Waite, J. Hunter, Robertson, Ina, Ostgaard, Nikolai, Beiersdorfer, Peter, Snowden, Steven L, Kharchenko, Vasili

“…Planetary and Space Science, Volume 55, Issue 9, p. 1135-1189 (2007) During the last few years our knowledge about the X-ray emission from bodies within the…”
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Evidence for an X-ray Emitting Galactic Bulge: Shadows Cast by Distant Molecular Gas by Park, Sangwook, Finley, John P, Snowden, Steven L, Dame, Thomas M

“…A mosaic of 7 ROSAT PSPC pointed observations in the direction of (l,b ~ 10,0 deg) reveals deep X-ray shadows in the 0.5-2.0 keV band cast by dense molecular…”
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Diffuse Soft X-ray Emission from Several Nearby Spiral Galaxies by Cui, Wei, Sanders, Wilton T, McCammon, Dan, Snowden, Steven L, Womble, Donna S

“…We observed several nearby face-on spiral galaxies with the ROSAT PSPC to study their 0.1-2.0 keV diffuse emission. After the exclusion of resolved discrete…”
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Limits to the 1/4 keV Extragalactic X-ray Background by Cui, Wei, Sanders, Wilton T, McCammon, Dan, Snowden, Steven L, Womble, Donna S

“…We observed several nearby face-on spiral galaxies with the ROSAT PSPC. The apparent deficiency in soft X-ray surface brightness observed at the outer portion…”
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