Zobrazeno 1 - 10
of 8 601
pro vyhledávání: '"M, Dark"'
Autor:
Morii, Kaho, Sanhueza, Patricio, Zhang, Qizhou, Nakamura, Fumitaka, Li, Shanghuo, Sabatini, Giovanni, Olguin, Fernando A., Beuther, Henrik, Tafoya, Daniel, Izumi, Natsuko, Tatematsu, Ken'ichi, Sakai, Takeshi
Fragmentation during the early stages of high-mass star formation is crucial for understanding the formation of high-mass clusters. We investigated fragmentation within thirty-nine high-mass star-forming clumps as part of the Atacama Large Millimeter
Externí odkaz:
http://arxiv.org/abs/2403.07058
Autor:
Izumi, Natsuko, Sanhueza, Patricio, Koch, Patrick M., Lu, Xing, Li, Shanghuo, Sabatini, Giovanni, Olguin, Fernando A., Zhang, Qizhou, Nakamura, Fumitaka, Tatematsu, Ken'ichi, Morii, Kaho, Sakai, Takeshi, Tafoya, Daniel
Massive infrared dark clouds (IRDCs) are considered to host the earliest stages of high-mass star formation. In particular, 70 $\mu$m dark IRDCs are the colder and more quiescent clouds. At a scale of about 5000 au using formaldehyde (H2CO) emission,
Externí odkaz:
http://arxiv.org/abs/2312.03935
Publikováno v:
Eur. Phys. J. Plus 138, 852 (2023)
We conduct a Bayesian analysis of recent observational datasets, specifically the Cosmic Chronometers (CC) dataset and Pantheon samples, to investigate the evolution of the EoS parameter in dark energy models. Our study focused on the effective EoS p
Externí odkaz:
http://arxiv.org/abs/2309.09229
Autor:
Morii, Kaho, Sanhueza, Patricio, Nakamura, Fumitaka, Zhang, Qizhou, Sabatini, Giovanni, Beuther, Henrik, Lu, Xing, Li, Shanghuo, Garay, Guido, Jackson, James M., Olguin, Fernando A., Tafoya, Daniel, Tatematsu, Ken'ichi, Izumi, Natsuko, Sakai, Takeshi, Silva, Andrea
The initial conditions found in infrared dark clouds (IRDCs) provide insights on how high-mass stars and stellar clusters form. We have conducted high-angular resolution and high-sensitivity observations toward thirty-nine massive IRDC clumps, which
Externí odkaz:
http://arxiv.org/abs/2304.01757
Autor:
Kong, Shuo, Arce, Héctor G., Tobin, John J., Zhang, Yichen, Maureira, María José, Kratter, Kaitlin M., Pillai, Thushara G. S.
We report high-resolution ALMA observations toward a massive protostellar core C1-Sa ($\sim$30 M$_\odot$) in the Dragon Infrared Dark Cloud. At the resolution of 140 AU, the core fragments into two kernels (C1-Sa1 and C1-Sa2) with a projected separat
Externí odkaz:
http://arxiv.org/abs/2305.02286
Autor:
Li, Shanghuo, Sanhueza, Patricio, Zhang, Qizhou, Guido, Garay, Sabatini, Giovanni, Morii, Kaho, Lu, Xing, Tafoya, Daniel, Nakamura, Fumitaka, Izumi, Natsuko, Tatematsu, Keńichi, Li, Fei
We present the dynamical properties of 294 cores embedded in twelve IRDCs observed as part of the ASHES Survey. Protostellar cores have higher gas masses, surface densities, column densities, and volume densities than prestellar cores, indicating cor
Externí odkaz:
http://arxiv.org/abs/2304.01718
Autor:
Li, Shanghuo, Sanhueza, Patricio, Lu, Xing, Lee, Chang Won, Zhang, Qizhou, Bovino, Stefano, Sabatini, Giovanni, Liu, Tie, Kim, Kee-Tae, Morii, Kaho, Tafoya, Daniel, Tatematsu, Ken'ichi, Sakai, Takeshi, Wang, Junzhi, Li, Fei, Silva, Andrea, Izumi, Natsuko, Allingham, David
We present a study of chemistry toward 294 dense cores in 12 molecular clumps using the data obtained from the ALMA Survey of 70 $\mu \rm m$ dark High-mass clumps in Early Stages (ASHES). We identified 97 protostellar cores and 197 prestellar core ca
Externí odkaz:
http://arxiv.org/abs/2209.12814
Autor:
Sabatini, Giovanni, Bovino, Stefano, Sanhueza, Patricio, Morii, Kaho, Li, Shanghuo, Redaelli, Elena, Zhang, Qizhou, Lu, Xing, Feng, Siyi, Tafoya, Daniel, Izumi, Natsuko, Sakai, Takeshi, Tatematsu, Kenichi, Allingham, David
Studying the physical and chemical properties of cold and dense molecular clouds is crucial for the understanding of how stars form. Under the typical conditions of infrared dark clouds, CO is removed from the gas phase and trapped on to the surface
Externí odkaz:
http://arxiv.org/abs/2207.12431
Autor:
Sakai, Takeshi, Sanhueza, Patricio, Furuya, Kenji, Tatematsu, Ken'ichi, Li, Shanghuo, Aikawa, Yuri, Lu, Xing, Zhang, Qizhou, Morii, Kaho, Nakamura, Fumitaka, Takemura, Hideaki, Izumi, Natsuko, Hirota, Tomoya, Silva, Andrea, Guzmán, Andrés E., Sakai, Nami, Yamamoto, Satoshi
We have observed the 70 $\mu$m dark infrared dark cloud (IRDC) G14.492-00.139 in the N$_2$D$^+$ $J$=3--2, DCO$^+$ $J$=3--2, DCN $J$=3--2, and C$^{18}$O $J$=2--1 lines, using the Atacama Large Millimeter/submillimeter Array (ALMA) as part of the ALMA
Externí odkaz:
http://arxiv.org/abs/2111.13325
Autor:
Morii, Kaho, Sanhueza, Patricio, Nakamura, Fumitaka, Jackson, James M., Li, Shanghuo, Beuther, Henrik, Zhang, Qizhou, Feng, Siyi, Tafoya, Daniel, Guzmán, Andrés E., Izumi, Natsuko, Sakai, Takeshi, Lu, Xing, Tatematsu, Ken'ichi, Ohashi, Satoshi, Silva, Andrea, Olguin, Fernando A., Contreras, Yanett
With a mass of $\sim$1000 $M_\odot$ and a surface density of $\sim$0.5 g cm$^{-2}$, G023.477+0.114 also known as IRDC 18310-4 is an infrared dark cloud (IRDC) that has the potential to form high-mass stars and has been recognized as a promising prest
Externí odkaz:
http://arxiv.org/abs/2109.01231