Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Cosentino, Giuliana"'
The origin of the stellar Initial Mass Function (IMF) and how it may vary with galactic environment is a matter of debate. Certain star formation theories involve a close connection between the IMF and the Core Mass Function (CMF) and so it is import
Externí odkaz:
http://arxiv.org/abs/2403.04032
Autor:
Law, C-Y, Tan, Jonathan C., Skalidis, Raphael, Morgan, Larry, Xu, Duo, Alves, Felipe de Oliveira, Barnes, Ashley T., Butterfield, Natalie, Caselli, Paola, Cosentino, Giuliana, Fontani, Francesco, Henshaw, Jonathan D., Jimenez-Serra, Izaskun, Lim, Wanggi
Magnetic fields may play a crucial role in setting the initial conditions of massive star and star cluster formation. To investigate this, we report SOFIA-HAWC+ $214\:\mu$m observations of polarized thermal dust emission and high-resolution GBT-Argus
Externí odkaz:
http://arxiv.org/abs/2401.11560
Autor:
Gorai, Prasanta, Law, Chi-Yan, Tan, Jonathan C., Zhang, Yichen, Fedriani, Ruben, Tanaka, Kei E. I., Bonfand, Melisse, Cosentino, Giuliana, Mardones, Diego, Beltran, Maria T., Garay, Guido
We study the astrochemical diagnostics of the isolated massive protostar G28.20-0.05. We analyze data from ALMA 1.3~mm observations with resolution of 0.2 arcsec ($\sim$1,000 au). We detect emission from a wealth of species, including oxygen-bearing
Externí odkaz:
http://arxiv.org/abs/2303.02772
Autor:
Megías, Andrés, Jiménez-Serra, Izaskun, Martín-Pintado, Jesús, Vasyunin, Anton I., Spezzano, Silvia, Caselli, Paola, Cosentino, Giuliana, Viti, Serena
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 519, Issue 2, February 2023, Pages 1601-1617
Recent observations of the pre-stellar core L1544 and the younger starless core L1498 have revealed that complex organic molecules (COMs) are enhanced in the gas phase toward their outer and intermediate-density shells. Our goal is to determine the l
Externí odkaz:
http://arxiv.org/abs/2211.16119
Autor:
Fedriani, Ruben, Tan, Jonathan C., Telkamp, Zoie, Zhang, Yichen, Yang, Yao-Lun, Liu, Mengyao, Law, Chi-Yan, Beltran, Maria T., Rosero, Viviana, Tanaka, Kei E. I., Cosentino, Giuliana, Gorai, Prasanta, Farias, Juan, Staff, Jan E., De Buizer, James M., Whitney, Barbara
We present $\sim10-40\,\mu$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 $\mu$m imaging. We develop an automated method to define source
Externí odkaz:
http://arxiv.org/abs/2205.11422
Autor:
Rivilla, Víctor M., de la Concepción, Juan García, Jiménez-Serra, Izaskun, Martín-Pintado, Jesús, Colzi, Laura, Tercero, Belén, Megías, Andrés, López-Gallifa, Álvaro, Martínez-Henares, Antonio, Massalkhi, Sara, Martín, Sergio, Zeng, Shaoshan, De Vicente, Pablo, Rico-Villas, Fernando, Requena-Torres, Miguel A., Cosentino, Giuliana
We report the first detection of the phosphorus monoxide ion (PO$^{+}$) in the interstellar medium. Our unbiased and very sensitive spectral survey towards the G+0.693$-$0.027 molecular cloud covers four different rotational transitions of this molec
Externí odkaz:
http://arxiv.org/abs/2202.13928
Autor:
Law, Chi-Yan, Tan, Jonathan C., Gorai, Prasanta, Zhang, Yichen, Fedriani, Rubén, Tafoya, Daniel, Tanaka, Kei, Cosentino, Giuliana, Yang, Yao-Lun, Mardones, Diego, Beltrán, Maria Teresa, Garay, Guido
We report high-resolution 1.3~mm continuum and molecular line observations of the massive protostar G28.20-0.05 with ALMA. The continuum image reveals a ring-like structure with 2,000~au radius, similar to morphology seen in archival 1.3~cm VLA obser
Externí odkaz:
http://arxiv.org/abs/2201.01411
Autor:
Entekhabi, Negar, Tan, Jonathan C., Cosentino, Giuliana, Hsu, Chia-Jung, Caselli, Paola, Walsh, Catherine, Lim, Wanggi, Henshaw, Jonathan D., Barnes, Ashley T., Fontani, Francesco, Jiménez-Serra, Izaskun
Publikováno v:
A&A 662, A39 (2022)
Infrared dark clouds (IRDCs) are cold, dense regions of the interstellar medium (ISM) that are likely to represent the initial conditions for massive star formation. It is thus important to study the physical and chemical conditions of IRDCs to provi
Externí odkaz:
http://arxiv.org/abs/2111.05379
Autor:
Jimenez-Serra, Izaskun, Vasyunin, Anton I., Spezzano, Silvia, Caselli, Paola, Cosentino, Giuliana, Viti, Serena
Observations carried out toward starless and pre-stellar cores have revealed that complex organic molecules are prevalent in these objects, but it is unclear what chemical processes are involved in their formation. Recently, it has been shown that co
Externí odkaz:
http://arxiv.org/abs/2105.08363
The stellar initial mass function (IMF) is fundamental for many areas of astrophysics, but its origin remains poorly understood. It may be inherited from the core mass function (CMF) or arise as a result of more chaotic, competitive accretion. Dense,
Externí odkaz:
http://arxiv.org/abs/2104.08861