Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Prasanta Gorai"'
Autor:
Rana Ghosh, Ankan Das, Prasanta Gorai, Suman Kumar Mondal, Kenji Furuya, Kei E. I. Tanaka, Takashi Shimonishi
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
SO and SO2 are two potential candidates to trace the different evolutionary phases of the low-mass star-formation process. Here, we report observations of SO and SO2 along with their isotopologues, 34SO and 34SO2, respectively, in four distinct phase
Externí odkaz:
https://doaj.org/article/296083f36dbb4722b20a195169d099ca
Autor:
R. Ramachandran, Milan Sil, Prasanta Gorai, J. K. Meka, Pavithraa Sundararajan, J.-I. Lo, S.-L. Chou, Y.-J. Wu, P. Janardhan, B.-M. Cheng, Anil Bhardwaj, Víctor M. Rivilla, N. J. Mason, B. Sivaraman, Ankan Das
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 181 (2024)
Ethanolamine (NH _2 CH _2 CH _2 OH) has recently been identified in the molecular cloud G+0.693-0.027, situated in the SgrB2 complex in the Galactic center. However, its presence in other regions, and in particular in star-forming sites, is still elu
Externí odkaz:
https://doaj.org/article/16bb716bef2b42e79d685495d0526d10
Autor:
Prasanta Gorai, Chi-Yan Law, Jonathan C. Tan, Yichen Zhang, Rubén Fedriani, Kei E. I. Tanaka, Mélisse Bonfand, Giuliana Cosentino, Diego Mardones, Maria T. Beltrán, Guido Garay
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 2, p 127 (2024)
We study the astrochemical diagnostics of the isolated massive protostar G28.20-0.05. We analyze data from Atacama Large Millimeter/submillimeter Array 1.3 mm observations with a resolution of 0.″2 (∼1000 au). We detect emission from a wealth of
Externí odkaz:
https://doaj.org/article/89a2e5fc85de4155925c881cd9de815e
Autor:
Bratati Bhat, Rumela Kar, Suman Kumar Mondal, Rana Ghosh, Prasanta Gorai, Takashi Shimonishi, Kei E. I. Tanaka, Kenji Furuya, Ankan Das
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 2, p 111 (2023)
The destiny of complex organic molecules (COMs) in star-forming regions is interlinked with various evolutionary phases. Therefore, identifying these species in diversified environments of identical star-forming regions would help to understand their
Externí odkaz:
https://doaj.org/article/fa7d0e85597d406e988cc30635201fdd
Autor:
Kotomi Taniguchi, Patricio Sanhueza, Fernando A. Olguin, Prasanta Gorai, Ankan Das, Fumitaka Nakamura, Masao Saito, Qizhou Zhang, Xing Lu, Shanghuo Li, Huei-Ru Vivien Chen
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 1, p 57 (2023)
We have analyzed the NH _2 CHO, HNCO, H _2 CO, and CH _3 CN ( ^13 CH _3 CN) molecular lines at an angular resolution of ∼0.″3 obtained by the Atacama Large Millimeter/submillimeter Array Band 6 toward 30 high-mass star-forming regions. The NH _2
Externí odkaz:
https://doaj.org/article/f1b5cd337a4243fdae037cae0325e017
Autor:
Ankan Das, Milan Sil, Rana Ghosh, Prasanta Gorai, Soutan Adak, Subhankar Samanta, Sandip K. Chakrabarti
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 8 (2021)
The abundance of interstellar ice constituents is usually expressed with respect to the water ice because, in denser regions, a significant portion of the interstellar grain surface would be covered by water ice. The binding energy (BE) or adsorption
Externí odkaz:
https://doaj.org/article/875c9c31c1104d8bb7b2c463d6ae5e28
Autor:
Rubén Fedriani, Jonathan C. Tan, Zoie Telkamp, Yichen Zhang, Yao-Lun Yang, Mengyao Liu, James M. De Buizer, Chi-Yan Law, Maria T. Beltran, Viviana Rosero, Kei E. I. Tanaka, Giuliana Cosentino, Prasanta Gorai, Juan Farias, Jan E. Staff, Barbara Whitney
Publikováno v:
The Astrophysical Journal, Vol 942, Iss 1, p 7 (2022)
We present ∼10–40 μ m SOFIA-FORCAST images of 11 isolated protostars as part of the SOFIA Massive (SOMA) Star Formation Survey, with this morphological classification based on 37 μ m imaging. We develop an automated method to define source aper
Externí odkaz:
https://doaj.org/article/f50ded964d5b447d8b66ca26bd24addb
Straight-chain (normal-propyl cyanide, n - C3H7CN) and branched-chain (iso-propyl cyanide, i - C3H7CN) alkyl cyanides are recently identified in the massive star-forming regions (Sgr B2(N) and Orion). These branched-chain molecules indicate that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c524601c902952d752aa3fba4cadc86
Autor:
Emmanuel E. Etim, Kenji Furuya, Ankan Das, Milan Sil, Naoki Nakatani, Takashi Shimonishi, Rana Ghosh, Jonathan C. Tan, Prasanta Gorai, Suman Kumar Mondal, Sandip K. Chakrabarti
It is speculated that there might be some linkage between interstellar aldehydes and their corresponding alcohols. Here, an observational study and astrochemical modeling are coupled together to illustrate the connection between them. The ALMA Cycle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22693a54d9e2755f05cb4960956731d1
http://arxiv.org/abs/2108.06240
http://arxiv.org/abs/2108.06240
Autor:
Rana Ghosh, Milan Sil, Suman Kumar Mondal, Prasanta Gorai, Dipen Sahu, Rahul Kumar Kushwaha, Bhalamurugan Sivaraman, Ankan Das
Publikováno v:
Research in Astronomy and Astrophysics. 22:065021
Phenol, which belongs to the C6H6O isomeric group, is the simplest molecule in the family of alcohol of the aromatic series. Although phenol has yet to be detected in the interstellar medium, a tentative identification was reported toward the Orion K
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa6c183c64657c4e3178f9a81221e94a
https://doi.org/10.1088/1674-4527/ac6aa9
https://doi.org/10.1088/1674-4527/ac6aa9