Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Morata, Oscar"'
Autor:
Kaur, Simranpreet, Viganò, Daniele, Béjar, Víctor J. S., Monge, Álvaro Sánchez, Morata, Òscar, Kansabanik, Devojyoti, Girart, Josep Miquel, Morales, Juan Carlos, Anglada-Escudé, Guillem, Murgas, Felipe, Shan, Yutong, Ilin, Ekaterina, Pérez-Torres, Miguel, Osorio, María Rosa Zapatero, Amado, Pedro J., Caballero, José A., Del Sordo, Fabio, Palle, Enric, Quirrenbach, Andreas, Reiners, Ansgar, Ribas, Ignasi
Publikováno v:
A&A 691, L17 (2024)
Scallop-shell stars, a recently discovered class of young M dwarfs, show complex optical light curves that are characterized by periodic dips as well as other features that are stable over tens to hundreds of rotation cycles. The origin of these feat
Externí odkaz:
http://arxiv.org/abs/2410.22449
Autor:
Kaur, Simranpreet, Girart, Josep M., Viganò, Daniele, Monge, Álvaro Sánchez, Cleeves, L. Ilsedore, Zurlo, Alice, Del Sordo, Fabio, Morata, Òscar, Bhowmik, Trisha, Alves, Felipe O.
Publikováno v:
A&A 690, A303 (2024)
The young stellar object [BHB2007]-1 has been extensively studied in the past at radio, millimeter, and infrared wavelengths. It shows a gap in the disk and previous observations claimed the possible emission from a forming sub-stellar object, in cor
Externí odkaz:
http://arxiv.org/abs/2408.04025
Autor:
Marshall, Jonathan P., Ertel, Steve, Kemper, Francisca, del Burgo, Carlos, Otten, Gilles P. P. L., Scicluna, Peter, Zeegers, Sascha T., Ribas, Álvaro, Morata, Oscar
Publikováno v:
ApJ 954 140 (2023)
ASASSN-21qj is a distant Sun-like star that recently began an episode of deep dimming events after no prior recorded variability. Here we examine archival and newly obtained optical and near-infrared data of this star. The deep aperiodic dimming and
Externí odkaz:
http://arxiv.org/abs/2309.16969
Autor:
Lee, Yong-Hee, Johnstone, Doug, Lee, Jeong-Eun, Herczeg, Gregory, Mairs, Steve, Contreras-Peña, Carlos, Hatchell, Jennifer, Naylor, Tim, Bell, Graham S., Bourke, Tyler L., Broughton, Colton, Francis, Logan, Gupta, Aashish, Harsono, Daniel, Liu, Sheng-Yuan, Park, Geumsook, Plovie, Spencer, Moriarty-Schieven, Gerald H., Scholz, Aleks, Sharma, Tanvi, Teixeira, Paula Stella, Wang, Yao-Te, Aikawa, Yuri, Bower, Geoffrey C., Chen, Huei-Ru Vivien, Bae, Jaehan, Baek, Giseon, Chapman, Scott, Chen, Wen Ping, Du, Fujun, Dutta, Somnath, Forbrich, Jan, Guo, Zhen, Inutsuka, Shu-ichiro, Kang, Miju, Kirk, Helen, Kuan, Yi-Jehng, Kwon, Woojin, Lai, Shih-Ping, Lalchand, Bhavana, Lane, James M. M., Lee, Chin-Fei, Liu, Tie, Morata, Oscar, Pearson, Samuel, Pon, Andy, Sahu, Dipen, Shang, Hsien, Stamatellos, Dimitris, Tang, Shih-Yun, Xu, Ziyan, Yoo, Hyunju
We present the four-year survey results of monthly submillimeter monitoring of eight nearby ($< 500 $pc) star-forming regions by the JCMT Transient Survey. We apply the Lomb-Scargle Periodogram technique to search for and characterize variability on
Externí odkaz:
http://arxiv.org/abs/2107.10750
Autor:
Johnstone, Doug, Herczeg, Gregory J., Mairs, Steve, Hatchell, Jennifer, Bower, Geoffrey C., Kirk, Helen, Lane, James, Bell, Graham S., Graves, Sarah, Aikawa, Yuri, Chen, Huei-Ru Vivien, Chen, Wen-Ping, Kang, Miju, Kang, Sung-Ju, Lee, Jeong-Eun, Morata, Oscar, Pon, Andy, Scicluna, Peter, Scholz, Aleks, Takahashi, Satoko, Yoo, Hyunju
We analyze results from the first eighteen months of monthly sub-mm monitoring of eight star-forming regions in the JCMT Transient Survey. In our search for stochastic variability in 1643 bright peaks, only the previously identified source, EC53, sho
Externí odkaz:
http://arxiv.org/abs/1801.03537
Autor:
Mairs, Steve, Johnstone, Doug, Kirk, Helen, Lane, James, Bell, Graham S., Graves, Sarah, Herczeg, Gregory J., Scicluna, Peter, Bower, Geoffrey C., Chen, Huei-Ru Vivien, Hatchell, Jennifer, Aikawa, Yuri, Chen, Wen-Ping, Kang, Miju, Kang, Sung-Ju, Lee, Jeong-Eun, Morata, Oscar, Pon, Andy, Scholz, Aleks, Takahashi, Satoko, Yoo, Hyunju, Team, the JCMT Transient
Investigating variability at the earliest stages of low-mass star formation is fundamental in understanding how a protostar assembles mass. While many simulations of protostellar disks predict non-steady accretion onto protostars, deeper investigatio
Externí odkaz:
http://arxiv.org/abs/1710.03761
Autor:
Herczeg, Gregory J., Johnstone, Doug, Mairs, Steve, Hatchell, Jennifer, Lee, Jeong-Eun, Bower, Geoffrey C., Chen, Huei-Ru Vivien, Aikawa, Yuri, Yoo, Hyunju, Kang, Sung-Ju, Kang, Miju, Chen, Wen-Ping, Williams, Jonathan P., Bae, Jaehan, Dunham, Michael M., Vorobiov, Eduard I., Zhu, Zhaohuan, Rao, Ramprasad, Kirk, Helen, Takahashi, Satoko, Morata, Oscar, Lacaille, Kevin, Lane, James, Pon, Andy, Scholz, Aleks, Samal, Manash R., Bell, Graham S., Graves, Sarah, Lee, E'lisa M., Parsons, Harriet, He, Yuxin, Zhou, Jianjun, Kim, Mi-Ryang, Chapman, Scott, Drabek-Maunder, Emily, Chung, Eun Jung, Eyres, Stewart P. S., Forbrich, Jan, Hillenbrand, Lynne A., Inutsuka, Shu-ichiro, Kim, Gwanjeong, Kim, Kyoung Hee, Kuan, Yi-Jehng, Kwon, Woojin, Lai, Shih-Ping, Lalchand, Bhavana, Lee, Chang Won, Lee, Chin-Fei, Long, Feng, Lyo, A-Ran, Qian, Lei, Scicluna, Peter, Soam, Archana, Stamatellos, Dimitris, Takakuwa, Shigehisa, Tang, Ya-Wen, Wang, Hongchi, Wang, Yiren
Most protostars have luminosities that are fainter than expected from steady accretion over the protostellar lifetime. The solution to this problem may lie in episodic mass accretion -- prolonged periods of very low accretion punctuated by short burs
Externí odkaz:
http://arxiv.org/abs/1709.02052
Autor:
De Huang, Yau, Morata, Oscar, Koch, Patrick Michel, Kemper, Ciska, Hwang, Yuh-Jing, Chiong, Chau-Ching, Ho, Paul, Chu, You-Hua, Huang, Chi-Den, Liu, Ching-Tang, Hsieh, Fang-Chia, Tseng, Yen-Hsiang, Weng, Shou-Hsien, Ho, Chin-Ting, Chiang, Po-Han, Wu, Hsiao-Ling, Chang, Chih-Cheng, Jian, Shou-Ting, Lee, Chien-Feng, Lee, Yi-Wei, Iguchi, Satoru, Asayama, Shin'ichiro, Iono, Daisuke, Gonzalez, Alvaro, Effland, John, Saini, Kamaljeet, Pospieszalski, Marian, Henke, Doug, Yeung, Keith, Finger, Ricardo, Tapia, Valeria, Reyes, Nicolas
The Atacama Large Millimeter/submillimeter Array(ALMA) Band 1 receiver covers the 35-50 GHz frequency band. Development of prototype receivers, including the key components and subsystems has been completed and two sets of prototype receivers were fu
Externí odkaz:
http://arxiv.org/abs/1612.00893
Autor:
Juárez, Carmen, Girart, Josep M., Frau, Pau, Palau, Aina, Estalella, Robert, Morata, Oscar, Alves, Felipe O., Beltrán, Maria T., Padovani, Marco
Publikováno v:
A&A 597, A74 (2017)
Pre-stellar cores within molecular clouds provide the very initial conditions in which stars are formed. We use the IRAM 30m telescope and the PdBI to study the chemical and physical properties of the starless core FeSt 1-457 (Core 109), in the Pipe
Externí odkaz:
http://arxiv.org/abs/1609.09406
Autor:
Hirashita, Hiroyuki, Koch, Patrick M., Matsushita, Satoki, Takakuwa, Shigehisa, Nakamura, Masanori, Asada, Keiichi, Liu, Hauyu Baobab, Urata, Yuji, Wang, Ming-Jye, Wang, Wei-Hao, Takahashi, Satoko, Tang, Ya-Wen, Chang, Hsian-Hong, Huang, Kuiyun, Morata, Oscar, Otsuka, Masaaki, Lin, Kai-Yang, Tsai, An-Li, Lin, Yen-Ting, Srinivasan, Sundar, Martin-Cocher, Pierre, Pu, Hung-Yi, Kemper, Francisca, Patel, Nimesh, Grimes, Paul, Huang, Yau-De, Han, Chih-Chiang, Huang, Yen-Ru, Nishioka, Hiroaki, Lin, Lupin Chun-Che, Zhang, Qizhou, Keto, Eric, Burgos, Roberto, Chen, Ming-Tang, Inoue, Makoto, Ho, Paul T. P.
Ground-based observations at terahertz (THz) frequencies are a newly explorable area of astronomy for the next ten years. We discuss science cases for a first-generation 10-m class THz telescope, focusing on the Greenland Telescope as an example of s
Externí odkaz:
http://arxiv.org/abs/1511.00839