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23 GHz VLBI Observations of SN 2008ax 

Marti-Vidal, I.; Alberdi, A.; Ros, E.; Shapiro, Irwin Ira; Beswick, R.J.; Pedlar, A.; Immler, S.; Panagia, N.; Van Dyk, S.; Marcaide, J. M.; Guirado, J. C.; Perrez-Torres, M. A.; Muxlow, T. W. B.; Argo, M. K.; Stockdale, C. J.; Sramek, R. A.; Weiler, K. W. (EDP Sciences, 2009)
We report on phase-referenced 23 GHz Very-Long-Baseline-Interferometry (VLBI) observations of the type IIb supernova SN 2008ax, made with the Very Long Baseline Array (VLBA) on 2 April 2008 (33 days after explosion). These ...
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A Decade of SN 1993J: Discovery of Radio Wavelength Effects in the Expansion Rate 

Marcaide, J.M.; Marti-Vidal, I.; Alberdi, A.; Perrez-Torres, M.A.; Ros, E.; Diamond, P.J.; Guirado, J.C.; Lara, L.; Shapiro, Irwin Ira; Stockdale, C.J.; Weiler, K.W.; Mantovani, F.; Preston, R.A.; Schilizzi, R.T.; Sramek, R.A.; Trigilio, C.; Van Dyk, S.D.; Whitney, A.R. (EDP Sciences, 2009)
We studied the growth of the shell-like radio structure of supernova SN 1993J in M 81 from September 1993 to October 2003 with very-long-baseline interferometry (VLBI) observations at the wavelengths of 3.6, 6, and 18 cm. ...
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The Dynamics of Dense Cores in the Perseus Molecular Cloud II: the Relationship between Dense Cores and the Cloud 

Kirk, Helen; Pineda, Jaime E.; Johnstone, Doug; Goodman, Alyssa (Institute of Physics Publishing, Inc., 2010)
We utilize the extensive datasets available for the Perseus molecular cloud to analyze the relationship between the kinematics of small-scale dense cores and the larger structures in which they are embedded. The kinematic ...
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Star Formation in the Taurus filament L 1495: from Dense Cores to Stars 

Schmalzl, Markus; Kainulainen, Jouni; Quanz, Sascha P.; Alves, João; Goodman, Alyssa; Henning, Thomas; Launhardt, Ralf; Pineda, Jaime E.; Román-Zúñiga, Carlos G. (Institute of Physics Publishing, Inc., 2010)
We present a study of dense structures in the L1495 filament in the Taurus Molecular Cloud and examine its star-forming properties. In particular we construct a dust extinction map of the filament using deep near-infrared ...
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The Angular Momentum of Magnetized Molecular Cloud Cores: A Two-Dimensional-Three-Dimensional Comparison 

Dib, Sami; Hennebelle, Patrick; Pineda, Jaime E.; Csengeri, Timea; Bontemps, Sylvain; Audit, Edouard; Goodman, Alyssa (Institute of Physics Publishing, Inc., 2010)
In this work, we present a detailed study of the rotational properties of magnetized and self-gravitating dense molecular cloud cores formed in a set of two very high resolution three-dimensional molecular cloud simulations ...
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A Reassessment of the Kinematics of PV Cephei Based on Accurate Proper Motion Measurements 

Loinard, Laurent; Rodríguez, Luis F.; Gómez, Laura; Cantó, Jorge; Raga, Alejandro C.; Goodman, Alyssa; Arce, Héctor G. (Universidad Nacional Autónoma de México, 2010)
We present two Very Large Array observations of the pre-main-sequence star PV Cephei, taken with a separation of 10.5 years. These data show that the proper motions of this star are \(\mu_{\alpha} = +10.9 \pm 3.0 \ mas \ ...
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Comparative Analysis and Variability of the Jovian X‐Ray Spectra Detected by the Chandra and XMM‐Newton Observatories 

Dalgarno, Alexander; Hui, Yawei; Schultz, David R.; Kharchenko, Vasili A.; Bhardwaj, Anil; Branduardi‐Raymont, Graziella; Stancil, Phillip C.; Cravens, Thomas E.; Lisse, Carey M. (American Geophysical Union, 2010)
Expanding upon recent work, a more comprehensive spectral model based on charge exchange induced X‐ray emission by ions precipitating into the Jovian atmosphere is used to provide new understanding of the polar auroras. ...
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Collisions of Trapped Molecules With Slow Beams 

Tscherbul, Timur V.; Pavlovic, Zoran; Sadeghpour, Hossein R.; Côté, Robin; Dalgarno, Alexander (American Physical Society, 2010)
We present a theoretical study of molecular-trap loss induced by collisions with slow atomic beams based on an explicit analysis of collision kinematics in the laboratory frame and a rigorous quantum description of ...
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Cold N + NH Collisions in a Magnetic Trap 

Hummon, Matthew T.; Tscherbul, Timur V.; Klos, Jacek; Lu, Hsin-I; Tsikata, Edem; Campbell, Wesley C.; Dalgarno, Alexander; Doyle, John M. (American Physical Society, 2011)
We present an experimental and theoretical study of atom-molecule collisions in a mixture of cold, trapped N atoms and NH molecules at a temperature of ∼600  mK. We measure a small N + NH trap loss rate coefficient of ...
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Parameter Estimation From Improved Measurements of the Cosmic Microwave Background From QUaD 

Gupta, Sujata; Ade, Peter; Bock, James; Bowden, Melanie; Brown, Michael L.; Cahill, Gary; Castro, Patricia G.; Church, Sarah; Culverhouse, Thomas; Friedman, Robert B.; Ganga, Ken; Gear, Walter K.; Hinderks, James; Kovac, John M; Lange, Andrew E.; Leitch, Erik; Melhuish, Simon J.; Memari, Yasin; Murphy, J. Anthony; Orlando, Angiola; O'Sullivan, Creidhe; Piccirillo, Lucio; Pryke, Clem; Rajguru, Nutan; Rusholme, Ben; Schwarz, Robert; Taylor, Andrew N.; Thompson, Keith L.; Turner, Abigail H.; Wu, Ed Y. S.; Zemcov, Michael B. (IOP Publishing, 2010)
We evaluate the contribution of cosmic microwave background (CMB) polarization spectra to cosmological parameter constraints. We produce cosmological parameters using high-quality CMB polarization data from the ground-based ...
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Keyword
  • black hole physics (60)
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  • Quasars: general (28)
  • galaxies: active (26)
  • polarization (25)
  • cosmology: observations (24)
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FAS Department
  • Astronomy$:$ (878)
  • Physics (49)
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