Cyanopolyyne Chemistry in the L1544 Prestellar Core: New Insights from GBT Observations

Autor: Eleonora Bianchi, Anthony Remijan, Claudio Codella, Cecilia Ceccarelli, Francois Lique, Silvia Spezzano, Nadia Balucani, Paola Caselli, Eric Herbst, Linda Podio, Charlotte Vastel, Brett McGuire

Publikováno v: The Astrophysical Journal, Vol 944, Iss 2, p 208 (2023)

We report a comprehensive study of the cyanopolyyne chemistry in the prototypical prestellar core L1544. Using the 100 m Robert C. Byrd Green Bank Telescope, we observe three emission lines of HC _3 N, nine lines of HC _5 N, five lines of HC _7 N, an

Externí odkaz: https://doaj.org/article/3e7e787ce88244889e3d62f6ad023f8f

The Central 1000 au of a Pre-stellar Core Revealed with ALMA. II. Almost Complete Freeze-out

Autor: Paola Caselli, Jaime E. Pineda, Olli Sipilä, Bo Zhao, Elena Redaelli, Silvia Spezzano, Maria José Maureira, Felipe Alves, Luca Bizzocchi, Tyler L. Bourke, Ana Chacón-Tanarro, Rachel Friesen, Daniele Galli, Jorma Harju, Izaskun Jiménez-Serra, Eric Keto, Zhi-Yun Li, Marco Padovani, Anika Schmiedeke, Mario Tafalla, Charlotte Vastel

Publikováno v: The Astrophysical Journal
The Astrophysical Journal, 2022, 929, ⟨10.3847/1538-4357/ac5913⟩

Pre-stellar cores represent the initial conditions in the process of star and planet formation. Their low temperatures ($
Comment: accepted for publication in The Astrophysical Journal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::351de0fc72d939a249748cc8f29633dd
http://arxiv.org/abs/2202.13374

Chemical exploration of Galactic cold cores

Autor: Chenlin Zhou, Charlotte Vastel, Julien Montillaud, Cecilia Ceccarelli, Karine Demyk, Jorma Harju, Mika Juvela, Isabelle Ristorcelli, Tie Liu

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2022, 658, pp.A131. ⟨10.1051/0004-6361/202142408⟩

A solar-type system starts from an initial molecular core that acquires organic complexity as it evolves. The so-called prestellar cores that can be studied are rare, which has hampered our understanding of how organic chemistry sets in and grows. Ai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dca51069331030f9b87181d65d4d05d
http://hdl.handle.net/10138/341498

Chemical and Physical Characterization of the Isolated Protostellar Source CB68: FAUST IV

Autor: Muneaki Imai, Yoko Oya, Brian Svoboda, Hauyu Baobab Liu, Bertrand Lefloch, Serena Viti, Yichen Zhang, Cecilia Ceccarelli, Claudio Codella, Claire J. Chandler, Nami Sakai, Yuri Aikawa, Felipe O. Alves, Nadia Balucani, Eleonora Bianchi, Mathilde Bouvier, Gemma Busquet, Paola Caselli, Emmanuel Caux, Steven Charnley, Spandan Choudhury, Nicolas Cuello, Marta De Simone, Francois Dulieu, Aurora Durán, Lucy Evans, Cécile Favre, Davide Fedele, Siyi Feng, Francesco Fontani, Logan Francis, Tetsuya Hama, Tomoyuki Hanawa, Eric Herbst, Shingo Hirano, Tomoya Hirota, Andrea Isella, Izaskun Jímenez-Serra, Doug Johnstone, Claudine Kahane, Romane Le Gal, Laurent Loinard, Ana López-Sepulcre, Luke T. Maud, María José Maureira, Francois Menard, Seyma Mercimek, Anna Miotello, George Moellenbrock, Shoji Mori, Nadia M. Murillo, Riouhei Nakatani, Hideko Nomura, Yasuhiro Oba, Ross O’Donoghue, Satoshi Ohashi, Yuki Okoda, Juan Ospina-Zamudio, Jaime Pineda, Linda Podio, Albert Rimola, Takeshi Sakai, Dominique Segura-Cox, Yancy Shirley, Vianney Taquet, Leonardo Testi, Charlotte Vastel, Naoki Watanabe, Yoshimasa Watanabe, Arezu Witzel, Ci Xue, Bo Zhao, Satoshi Yamamoto

Publikováno v: The Astrophysical Journal
The Astrophysical Journal, 2022, 934 (1), pp.70. ⟨10.3847/1538-4357/ac77e7⟩
The Astrophysical Journal, 934(1):70

Imai et al.
The chemical diversity of low-mass protostellar sources has so far been recognized, and environmental effects are invoked as its origin. In this context, observations of isolated protostellar sources without the influence of nearby o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2a785de5e380ad698a24e02aba5d587
https://hdl.handle.net/11391/1535373

FAUST II. Discovery of a Secondary Outflow in IRAS 15398-3359: Variability in Outflow Direction during the Earliest Stage of Star Formation?

Autor: Cécile Favre, Serena Viti, Luke T. Maud, Davide Fedele, S. Mercimek, Anna Miotello, Naoki Watanabe, Spandan Choudhury, Siyi Feng, Charlotte Vastel, Ross O'Donoghue, Brian Svoboda, Ci Xue, Claudine Kahane, Yuki Okoda, Doug Johnstone, Yoshimasa Watanabe, Andrea Isella, C. Codella, Yoko Oya, Linda Podio, Nami Sakai, J. Ospina-Zamudio, G. A. Moellenbrock, Aurora Durán, Yancy L. Shirley, Jaime E. Pineda, Paola Caselli, Yasuhiro Oba, François Dulieu, Laurent Loinard, Leonardo Testi, Muneaki Imai, Takeshi Sakai, Arezu Witzel, María José Maureira, Tomoyuki Hanawa, Francesco Fontani, Izaskun Jiménez-Serra, Lucy Evans, Marta De Simone, Felipe O. Alves, Logan Francis, Vianney Taquet, Dominique Segura-Cox, Emmanuel Caux, Mathilde Bouvier, Riouhei Nakatani, Bertrand Lefloch, Yichen Zhang, Nadia Balucani, Cecilia Ceccarelli, Tetsuya Hama, Satoshi Yamamoto, H. Nomura, Claire J. Chandler, Albert Rimola, Bo Zhao, Shoji Mori, Shu-ichiro Inutsuka, Tomoya Hirota, Satoshi Ohashi, Nadia M. Murillo, Eric Herbst, Steven B. Charnley, E. Bianchi, Ana López-Sepulcre, Yuri Aikawa, Francois Menard

Publikováno v: The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2021, 910 (1), pp.11. ⟨10.3847/1538-4357/abddb1⟩
DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
instname

We have observed the very low-mass Class 0 protostar IRAS 15398−3359 at scales ranging from 50 to 1800 au, as part of the Atacama Large Millimeter/Submillimeter Array Large Program FAUST. We uncover a linear feature, visible in H2CO, SO, and C18O l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4600710ef02b9835f976498e806e5746
http://arxiv.org/abs/2101.07404