Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Peng, Ruisheng"'
Autor:
Chapman, Nicholas L., Davidson, Jacqueline A., Goldsmith, Paul F., Houde, Martin, Kwon, Woojin, Li, Zhi-Yun, Looney, Leslie W., Matthews, Brenda, Matthews, Tristan G., Novak, Giles, Peng, Ruisheng, Vaillancourt, John E., Volgenau, Nikolaus H.
We present 350 micron polarization observations of four low-mass cores containing Class 0 protostars: L483, L1157, L1448-IRS2, and Serp-FIR1. This is the second paper in a larger survey aimed at testing magnetically regulated models for core-collapse
Externí odkaz:
http://arxiv.org/abs/1305.2922
We present a multi-wavelength observational study towards the high-mass young stellar object G8.68-0.37. A single massive gas-and-dust core is observed in the (sub)millimeter continuum and molecular line emissions. We fitted the spectral energy distr
Externí odkaz:
http://arxiv.org/abs/1203.2805
Autor:
Drahus, Michal, Jewitt, David, Guilbert-Lepoutre, Aurelie, Waniak, Waclaw, Hoge, James, Lis, Dariusz, Yoshida, Hiroshige, Peng, Ruisheng, Sievers, Albrecht
The nuclei of active comets emit molecules anisotropically from discrete vents. As the nucleus rotates, we expect to observe periodic variability in the molecular emission line profiles, which can be studied through mm/submm spectroscopy. Using this
Externí odkaz:
http://arxiv.org/abs/1104.0045
Autor:
Peng, Ruisheng, Yoshida, Hiroshige, Chamberlin, Richard A., Phillips, Thomas G., Lis, Dariusz C., Gerin, Maryvonne
Publikováno v:
Astrophysical Journal 723 (2010) 218-228
We report new observations of the fundamental $J=1-0$ transition of HCl (at 625.918GHz) toward a sample of 25 galactic star-forming regions, molecular clouds, and evolved stars, carried out using the Caltech Submillimeter Observatory. Fourteen source
Externí odkaz:
http://arxiv.org/abs/1009.4131
Autor:
Shinnaga, Hiroko, Young, Ken H., Tilanus, Remo P. J., Chamberlin, Richard, Gurwell, Mark A., Wilner, David, Hughes, A. Meredith, Yoshida, Hiroshige, Peng, Ruisheng, Force, Brian, Friberg, Per, Bottinelli, Sandrine, Van Dishoeck, Ewine F., Phillips, Thomas G.
Publikováno v:
Astrophys.J.698:1924-1933,2009; Erratum-ibid.727:60,2011
We used the Extended Submillimeter Array (eSMA) in its most extended configuration to investigate the innermost (within a radius of 290 R* from the star) circumstellar envelope (CSE) of IRC+10216. We imaged the CSE using HCN and other molecular lines
Externí odkaz:
http://arxiv.org/abs/0904.0280
Asteroid 3200 Phaethon resembles a comet in some ways, including a highly-eccentric orbit (e=0.89) and a strong associated meteor shower (the Geminids). Yet this object has never been observed to exhibit any cometary activity, i.e., gas production. W
Externí odkaz:
http://arxiv.org/abs/0801.0793
Autor:
Houde, Martin, Dowell, C. Darren, Hildebrand, Roger. H., Dotson, Jessie L., Vaillancourt, John E., Phillips, Thomas G., Peng, Ruisheng, Bastien, Pierre
Publikováno v:
Astrophys.J. 604 (2004) 717-740
We use extensive 350 um polarimetry and continuum maps obtained with Hertz and SHARC II along with HCN and HCO+ spectroscopic data to trace the orientation of the magnetic field in the Orion A star-forming region. Using the polarimetry data, we find
Externí odkaz:
http://arxiv.org/abs/astro-ph/0312365
Autor:
Houde, Martin, Bastien, Pierre, Dotson, Jessie L., Dowell, C. Darren, Hildebrand, Roger H., Peng, Ruisheng, Phillips, Thomas G., Vaillancourt, John E., Yoshida, Hiroshige
Publikováno v:
Astrophys.J. 569 (2002) 803-814
We demonstrate that the combination of Zeeman, polarimetry and ion-to-neutral molecular line width ratio measurements permits the determination of the magnitude and orientation of the magnetic field in the weakly ionized parts of molecular clouds. Ze
Externí odkaz:
http://arxiv.org/abs/astro-ph/0311354
Publikováno v:
Astrophys.J. 547 (2001) 311-316
The magnetic field is believed to play a crucial role in the process of star formation. From the support it provides during the initial collapse of molecular clouds to the creation of strong collimated jets responsible for large mass losses, current
Externí odkaz:
http://arxiv.org/abs/astro-ph/0311353
Publikováno v:
Astrophys.J. 537 (2000) 245-254
We present further observational evidence in support of our earlier proposal (Houde et al. 2000) for detecting the presence of the magnetic field in molecular clouds by comparing spectra of molecular ions with those of neutral molecules. The ion line
Externí odkaz:
http://arxiv.org/abs/astro-ph/0311336