Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Foster, Jonathan B."'
Autor:
Da Rio, Nicola, Tan, Jonathan C., Covey, Kevin R., Cottaar, Michiel, Foster, Jonathan B., Cullen, Nicholas C., Tobin, John, Kim, Jinyoung S., Meyer, Michael R., Nidever, David L., Stassun, Keivan G., Chojnowski, S. Drew, Flaherty, Kevin M., Majewski, Steven R., Skrutskie, Michael F., Zasowski, Gail, Pan, Kaike
The kinematics and dynamics of young stellar populations enable us to test theories of star formation. With this aim, we continue our analysis of the SDSS-III/APOGEE IN-SYNC survey, a high-resolution near-infrared spectroscopic survey of young cluste
Externí odkaz:
http://hdl.handle.net/10150/625776
http://arizona.openrepository.com/arizona/handle/10150/625776
http://arizona.openrepository.com/arizona/handle/10150/625776
Autor:
Fernandez, M. A., Covey, Kevin R., De Lee, Nathan, Chojnowski, S. Drew, Nidever, David, Ballantyne, Richard, Cottaar, Michiel, Da Rio, Nicola, Foster, Jonathan B., Majewski, Steven R., Meyer, Michael R., Reyna, A. M., Roberts, G. W., Skinner, Jacob, Stassun, Keivan, Tan, Jonathan C., Troup, Nicholas, Zasowski, Gail
We present radial velocity measurements for 70 high confidence, and 34 potential binary systems in fields containing the Perseus Molecular Cloud, Pleiades, NGC 2264, and the Orion A star forming region. 18 of these systems have been previously identi
Externí odkaz:
http://arxiv.org/abs/1706.01161
Autor:
Stephens, Ian W., Jackson, James M., Whitaker, J. Scott, Contreras, Yanett, Guzmán, Andrés E., Sanhueza, Patricio, Foster, Jonathan B., Rathborne, Jill M.
In a survey of 65 galaxies, Gao & Solomon (2004) found a tight linear relation between the infrared luminosity ($L_{\rm{IR}}$, a proxy for the star formation rate) and the HCN(1-0) luminosity ($L_{\rm{HCN}}$). Wu et al. (2005, 2010) found that this r
Externí odkaz:
http://arxiv.org/abs/1603.09341
Autor:
Da Rio, Nicola, Tan, Jonathan C., Covey, Kevin R., Cottaar, Michiel, Foster, Jonathan B., Cullen, Nicholas C., Tobin, John J., Kim, Jinyoung S., Meyer, Michael R., Nidever, David L., Stassun, Keivan G., Chojnowski, S. Drew, Flaherty, Kevin M., Majewski, Steve, Skrutskie, Michael F., Zasowski, Gail, Pan, Kaike
We present the results of the SDSS APOGEE INfrared Spectroscopy of Young Nebulous Clusters program (IN-SYNC) survey of the Orion A molecular cloud. This survey obtained high resolution near infrared (NIR) spectroscopy of about 2700 young pre-main seq
Externí odkaz:
http://arxiv.org/abs/1511.04147
Autor:
Cottaar, Michiel, Covey, Kevin R., Foster, Jonathan B., Meyer, Michael R., Tan, Jonathan C., Nidever, David L., Chojnowski, S. Drew, da Rio, Nicola, Flaherty, Kevin M., Frinchaboy, Peter M., Majewski, Steve, Skrutskie, Michael F., Wilson, John C., Zasowski, Gail
Most field stars will have encountered the highest stellar density and hence the largest number of interactions in their birth environment. Yet the stellar dynamics during this crucial phase are poorly understood. Here we analyze the radial velocitie
Externí odkaz:
http://arxiv.org/abs/1505.07504
Autor:
Sakai, Takeshi, Sakai, Nami, Furuya, Kenji, Aikawa, Yuri, Hirota, Tomoya, Foster, Jonathan B., Sanhueza, Patricio, Jackson, James M., Yamamoto, Satoshi
We have observed the clump G34.43+00.24 MM3 associated with an infrared dark cloud in DNC $J$=3--2, HN$^{13}$C $J$=3--2, and N$_2$H$^+$ $J$=3--2 with the Atacama Large Millimeter/submillimeter Array (ALMA). The N$_2$H$^+$ emission is found to be rela
Externí odkaz:
http://arxiv.org/abs/1503.01827
Autor:
Stephens, Ian W., Jackson, James M., Sanhueza, Patricio, Whitaker, J. Scott, Hoq, Sadia, Rathborne, Jill M., Foster, Jonathan B.
The Millimetre Astronomy Legacy Team 90 GHz (MALT90) survey has detected high-mass star-forming clumps with anomalous N$_2$H$^+$/HCO$^+$(1-0) integrated intensity ratios that are either unusually high ("N$_2$H$^+$ rich") or unusually low ("N$_2$H$^+$
Externí odkaz:
http://arxiv.org/abs/1501.04965
Autor:
Foster, Jonathan B., Cottaar, Michiel, Covey, Kevin R., Arce, Héctor G., Meyer, Michael R., Nidever, David L., Stassun, Keivan G., Tan, Jonathan C., Chojnowski, S. Drew, da Rio, Nicola, Flaherty, Kevin M., Rebull, Luisa, Frinchaboy, Peter M., Majewski, Steven R., Skrutskie, Michael, Wilson, John C., Zasowski, Gail
The initial velocity dispersion of newborn stars is a major unconstrained aspect of star formation theory. Using near-infrared spectra obtained with the APOGEE spectrograph, we show that the velocity dispersion of young (1-2 Myr) stars in NGC 1333 is
Externí odkaz:
http://arxiv.org/abs/1411.6013
Autor:
Yanagida, Takahiro, Sakai, Takeshi, Hirota, Tomoya, Sakai, Nami, Foster, Jonathan B., Sanhueza, Patricio, Jackson, James M., Furuya, Kenji, Aikawa, Yuri, Yamamoto, Satoshi
We have observed a molecular clump (MM3) associated with the infrared dark cloud G34.43+00.24 in the CH3OH J_K=9_{-1}--8_0 E, 5_0-4_0 E, and 5_{-1}-4_{-1} E lines at sub-arcsecond resolution by using the Atacama Large Millimeter/submillimeter Array.
Externí odkaz:
http://arxiv.org/abs/1409.7143
Autor:
Cottaar, Michiel, Covey, Kevin R., Meyer, Michael R., Nidever, David L., Stassun, Keivan G., Foster, Jonathan B., Tan, Jonathan C., Chojnowski, S. Drew, da Rio, Nicola, Flaherty, Kevin M., Frinchaboy, Peter M., Skrutskie, Michael, Majewski, Steven R., Wilson, John C., Zasowski, Gail
Over two years 8,859 high-resolution H-band spectra of 3,493 young (1 - 10 Myr) stars were gathered by the multi-object spectrograph of the APOGEE project as part of the IN-SYNC ancillary program of that SDSS-III survey. Here we present the forward m
Externí odkaz:
http://arxiv.org/abs/1408.7113