Dan McCammon

The Milky Way's Kiloparsec Scale Wind: A Hybrid Cosmic-Ray and Thermally Driven Outflow (2007)

Everett, John E., Zweibel, Ellen G., Benjamin, Robert A., McCammon, Dan, Rocks, Lindsay, Gallagher, John S., ...

We apply a wind model, driven by combined cosmic-ray and thermal-gas pressure, to the Milky Way, and show that the observed Galactic diffuse soft X-ray emission can be better explained by a wind than...

Suzaku Observations of the North Polar Spur: Evidence for Nitrogen Enhancement (2007)

Miller, Eric D., Tsunemi, Hiroshi, Bautz, Mark W., McCammon, Dan, Fujimoto, Ryuichi, Hughes, John P., ...

We present observations of the North Polar Spur (NPS) using the X-ray Imaging Spectrometer (XIS) aboard the Suzaku X-ray satellite. The NPS is a large region of enhanced soft X-ray and radio emission...

Constraints on the interactions between dark matter and baryons from the x-ray quantum calorimetry (2007)

Erickcek, Adrienne L., Steinhardt, Paul J., McCammon, Dan, McGuire, Patrick C.

Although the rocket-based x-ray quantum calorimetry (XQC) experiment was designed for x-ray spectroscopy, the minimal shielding of its calorimeters, its low atmospheric overburden, and its...

Complex impedance measurements of calorimeters and bolometers: correction for stray impedances (2007)

Lindeman, Mark. A., Barger, Kathleen A., Brandl, Donald E., Crowder, S. Gwynne, Rocks, Lindsay, McCammon, Dan

Impedance measurements provide a useful probe of the physics of bolometers and calorimeters. We describe a method for measuring the complex impedance of these devices. In previous work, stray...

Constraints on the Interactions between Dark Matter and Baryons from the X-ray Quantum Calorimetry Experiment (2007)

Erickcek, Adrienne L., Steinhardt, Paul J., McCammon, Dan, McGuire, Patrick C.

Although the rocket-based X-ray Quantum Calorimetry (XQC) experiment was designed for X-ray spectroscopy, the minimal shielding of its calorimeters, its low atmospheric overburden, and its...

Suzaku Observations of the Local and Distant Hot ISM (2006)

Smith, Randall K., Bautz, Mark W., Edgar, Richard J., Hamaguchi, Kenji, Hughes, John P., Ishida, Manabu, ...

Suzaku observed the molecular cloud MBM12 and a blank field less than 3 degrees away to separate the local and distant components of the diffuse soft X-ray background. Towards MBM12, a local (D< 275...

Evidence for Solar-Wind Charge-Exchange X-Ray Emission from the Earth's Magnetosheath (2006)

Fujimoto, Ryuichi, Mitsuda, Kazuhisa, McCammon, Dan, Takei, Yoh, Bauer, Michael, Ishisaki, Yoshitaka, ...

We report an apparent detection of the C VI 4p to 1s transition line at 459 eV, during a long-term enhancement (LTE) in the Suzaku north ecliptic pole (NEP) observation of 2005 September 2. The...

Semiconductor Thermistors (2005)

McCammon, Dan

Semiconductor thermistors operating in the variable range hopping conduction regime have been used in thermal detectors of all kinds for more than fifty years. Their use in sensitive bolometers for...

Thermal Equilibrium Calorimeters -- An Introduction (2005)

McCammon, Dan

Near-equilibrium thermal detectors operate as classical calorimeters, with energy deposition and internal equilibration times short compared to the thermal time constant of the device. Advances in...

Planar antenna-coupled transition-edge hot electron microbolometer (2003)

Ali, Shafinaz, Cooley, Lance D., McCammon, Dan, Nelms, Kari L., Peck, John R., Prober, Daniel, ...

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying...

Diffuse Soft X-ray Emission from Several Nearby Spiral Galaxies (1996)

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 sources, there is unresolved X-ray...

Limits to the 1/4 keV Extragalactic X-ray Background (1996)

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 of their disks is consistent with the...