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The ADS All-Sky Survey

Pepe, Alberto; Goodman, Alyssa; Muench, August A. (Astronomical Society of the Pacific, 2012)

The ADS All-Sky Survey (ADSASS) is an ongoing effort aimed at turning the NASA Astrophysics Data System (ADS), widely known for its unrivaled value as a literature resource for astronomers, into a data resource. The ADS ...

WorldWide Telescope in Research and Education

Goodman, Alyssa; Fay, Jonathan; Muench, August A.; Pepe, Alberto; Udompraseret, Patricia; Wong, Curtis (Astronomical Society of the Pacific, 2012)

The WorldWide Telescope computer program, released to researchers and the public as a free resource in 2008 by Microsoft Research, has changed the way the ever-growing Universe of online astronomical data is viewed and ...

The High-Density Ionized Gas in the Central Parsec of the Galaxy

Zhao, Jun-Hui; Blundell, Raymond; Moran, James M.; Downes, Dennis; Schuster, Karl F.; Marrone, Daniel P. (American Astronomical Society, 2010)

We report a study of the \(H30\alpha\) line emission at 1.3 mm from the region around Sgr A* made with the Submillimeter Array at a resolution of 2'' over a field of 60'' (2 pc) and a velocity range of \(-360 to +345 km ...

Scientific Verification Of Faraday Rotation Modulators: Detection Of Diffuse Polarized Galactic Emission

Moyerman, S.; Bierman, E.; Ade, P. A. R.; Aiken, R.; Barkats, D.; Bischoff, Colin A.; Bock, J. J.; Chiang, H. C.; Dowell, C. D.; Duband, L.; Hivon, E. F.; Holzapfel, W. L.; Hristov, V. V.; Jones, W. C.; Kaufman, J.; Keating, B. G.; Kovac, John M; Kuo, C. L.; Leitch, E. M.; Mason, P. V.; Matsumura, T.; Nguyen, H. T.; Ponthieu, N.; Pryke, C.; Richter, S.; Rocha, G.; Sheehy, C.; Takahashi, Y. D.; Tolan, J. E.; Wollack, E.; Yoon, K. W. (American Astronomical Society, 2013)

The design and performance of a wide bandwidth linear polarization modulator based on the Faraday effect is described. Faraday Rotation Modulators (FRMs) are solid-state polarization switches that are capable of modulation ...

The Nuclear Spectroscopic Telescope Array (NuSTAR) High-Energy X-Ray Mission

Harrison, Fiona A.; Craig, William W.; Christensen, Finn E.; Hailey, Charles J.; Zhang, William W.; Boggs, Steven E.; Stern, Daniel; Cook, W. Rick; Forster, Karl; Giommi, Paolo; Grefenstette, Brian W.; Kim, Yunjin; Kitaguchi, Takao; Koglin, Jason E.; Madsen, Kristin K.; Mao, Peter H.; Miyasaka, Hiromasa; Mori, Kaya; Perri, Matteo; Pivovaroff, Michael J.; Puccetti, Simonetta; Rana, Vikram R.; Westergaard, Niels J.; Willis, Jason; Zoglauer, Andreas; An, Hongjun; Bachetti, Matteo; Barrière, Nicolas M.; Bellm, Eric C.; Bhalerao, Varun; Brejnholt, Nicolai F.; Fuerst, Felix; Liebe, Carl C.; Markwardt, Craig B.; Nynka, Melania; Vogel, Julia K.; Walton, Dominic J.; Wik, Daniel R.; Alexander, David M.; Cominsky, Lynn R.; Hornschemeier, Ann E.; Hornstrup, Allan; Kaspi, Victoria M.; Madejski, Greg M.; Matt, Giorgio; Molendi, Silvano; Smith, David M.; Tomsick, John A.; Ajello, Marco; Ballantyne, David R.; Baloković, Mislav; Barret, Didier; Bauer, Franz E.; Blandford, Roger D.; Brandt, W. Niel; Brenneman, Laura W.; Chiang, James; Chakrabarty, Deepto; Chenevez, Jerome; Comastri, Andrea; Dufour, Francois; Elvis, Martin S.; Fabian, Andrew C.; Farrah, Duncan; Fryer, Chris L.; Gotthelf, Eric V.; Grindlay, Jonathan E.; Helfand, David J.; Krivonos, Roman; Meier, David L.; Miller, Jon M.; Natalucci, Lorenzo; Ogle, Patrick; Ofek, Eran O.; Ptak, Andrew; Reynolds, Stephen P.; Rigby, Jane R.; Tagliaferri, Gianpiero; Thorsett, Stephen E.; Treister, Ezequiel; Urry, C. Megan (IOP Publishing, 2013)

The Nuclear Spectroscopic Telescope Array (NuSTAR) mission, launched on 2012 June 13, is the first focusing high-energy X-ray telescope in orbit. NuSTAR operates in the band from 3 to 79 keV, extending the sensitivity of ...

Toward a New Geometric Distance To the Active Galaxy NGC 4258. III. Final Results and The Hubble Constant

Humphreys, E. M. L.; Reid, Mark Jonathan; Moran, James M.; Greenhill, Lincoln Jared; Argon, Alice L. (American Astronomical Society, 2013)

We report a new geometric maser distance estimate to the active galaxy NGC 4258. The data for the new model are maser line-of-sight (LOS) velocities and sky positions from 18 epochs of very long baseline interferometry ...

Dust Spectral Energy Distributions in the Era of Herschel and Planck: A Hierarchical Bayesian-Fitting Technique

Kelly, Brandon C.; Shetty, Rahul; Stutz, Amelia M.; Kauffmann, Jens; Goodman, Alyssa; Launhardt, Ralf (American Astronomical Society, 2012)

We present a hierarchical Bayesian method for fitting infrared spectral energy distributions (SEDs) of dust emission to observed fluxes. Under the standard assumption of optically thin single temperature (T) sources, the ...

Submillimeter Array Imaging of the Maser Emission from the \(H30\alpha\) Radio Recombination Line in MWC 349A

Weintroub, Jonathan; Moran, James M.; Wilner, David J.; Young, Ken Harbour; Rao, Ramprasad; Shinnaga, Hiroko (American Astronomical Society, 2008)

We used the Submillimeter Array to map the angular distribution of the H30α recombination line (231.9 GHz) in the circumstellar region of the peculiar star MWC 349A. The resolution was 1.2'', but because of high signal-to-noise ...

The Collimated Jet Source in IRAS 16547-4247: Time Variation, Possible Precession, and Upper Limits to the Proper Motions along the Jet Axis

Rodríguez, Luis F.; Moran, James M.; Franco-Hernández, Ramiro; Garay, Guido; Brooks, Kate J.; Mardones, Diego (American Astronomical Society, 2008)

The triple radio source detected in association with the luminous infrared source IRAS 16547-4247 has previously been studied with high angular resolution and high sensitivity with the Very Large Array at 3.6 cm wavelength. ...

Calibration of an Astrophysical Spectrograph Below 1 m/s Using a Laser Frequency Comb

Phillips, David Forrest; Glenday, Alexander G.; Li, Chih-Hao; Cramer, Claire; Furesz, Gabor; Chang, Guoqing; Benedick, Andrew J.; Chen, Li-Jin; Szentgyorgyi, Andrew H.; Walsworth, Ronald L. (Optical Society of America, 2012)

We deployed two wavelength calibrators based on laser frequency combs (“astro-combs”) at an astronomical telescope. One astro- comb operated over a 100 nm band in the deep red (∼ 800 nm) and a second operated over a 20 nm ...

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