Zobrazeno 1 - 10
of 600
pro vyhledávání: '"Hacar, A."'
Autor:
Hacar, A., Konietzka, R., Seifried, D., Clark, S. E., Socci, A., Bonanomi, F., Burkert, A., Schisano, E., Kainulainen, J., Smith, R.
Identified as parsec-size, gas clumps at the junction of multiple filaments, hub-filament systems (HFS) play a crucial role during the formation of young clusters and high-mass stars. These HFS appear nevertheless to be detached from most galactic fi
Externí odkaz:
http://arxiv.org/abs/2411.05613
Autor:
Ricciardi, Giulia, van Terwisga, Sierk E., Roccatagliata, Veronica, Hacar, Alvaro, Henning, Thomas, Del Pozzo, Walter
Aims. The goal of this work is to comprehensively characterize the impact of stellar multiplicity on Class II disks in the L1641 and L1647 regions of Orion A (~1-3 Myr), part of the Survey of Orion Disks with ALMA (SODA). We characterize the protoste
Externí odkaz:
http://arxiv.org/abs/2409.11485
Publikováno v:
A&A 690, A375 (2024)
The Herschel observations unveiled the complex organisation of the interstellar medium in networks of parsec-scale filaments over the past decade. At the same time, networks of fibers have been recognised describing the gas structures in star-forming
Externí odkaz:
http://arxiv.org/abs/2409.01321
Publikováno v:
A&A 690, A376 (2024)
Despite their variety of scales throughout the interstellar medium, filaments in nearby low-mass clouds show a characteristic width of $\sim$ 0.1 pc from the analysis of {\it Herschel} observations. The origin of this characteristic width, however, h
Externí odkaz:
http://arxiv.org/abs/2408.16427
Autor:
Murillo, N. M., Fuchs, C. M., Harsono, D., Sakai, N., Hacar, A., Johnstone, D., Mignon-Risse, R., Zeng, S., Hsieh, T. -H., Yang, Y. -L., Tobin, J. J., Persson, M. V.
Publikováno v:
A&A 689, A267 (2024)
Protostellar multiplicity is common at all stages and mass ranges. However, the factors that determine the multiplicity of protostellar systems have not been systematically characterized through their molecular gas. Nobeyama 45m Radio Observatory OTF
Externí odkaz:
http://arxiv.org/abs/2407.14702
Autor:
Booth, Mark, Klaassen, Pamela, Cicone, Claudia, Mroczkowski, Tony, Cordiner, Martin A., Di Mascolo, Luca, Johnstone, Doug, van Kampen, Eelco, Lee, Minju M., Liu, Daizhong, Orlowski-Scherer, John, Saintonge, Amélie, Smith, Matthew W. L., Thelen, Alexander, Wedemeyer, Sven, Akiyama, Kazunori, Andreon, Stefano, Arzoumanian, Doris, Bakx, Tom J. L. C., Bot, Caroline, Bower, Geoffrey, Brajša, Roman, Chen, Chian-Chou, da Cunha, Elisabete, Eden, David, Ettori, Stefano, Gaches, Brandt, Hatziminaoglou, Evanthia, Luppe, Patricia, Magnelli, Benjamin, Marshall, Jonathan P., Montenegro-Montes, Francisco Miguel, Niemack, Michael, Nixon, Conor, de Pater, Imke, Perrott, Yvette, Raimundo, Sandra I., Redaelli, Elena, Richards, Anita, Rybak, Matus, Šarčević, Nikolina, Semenov, Dmitry, Spezzano, Silvia, Srinivasan, Sundar, Stanke, Thomas, Andreani, Paola, Beltrán, Maria T., Butler, Bryan J., Cantalupo, Sebastiano, Dagostino, Miguel Chavez, Duarte-Cabral, Ana, Emonts, Bjorn, Fletcher, Leigh, Gary, Dale E., Gunar, Stanislav, Hacar, Alvaro, Hagedorn, Bendix, Kaminski, Tomek, Kirton, Fiona, de Kleer, Katherine, Kontar, Eduard, Kuan, Yi-Jehng, Lightfoot, John, Lopez-Rodriguez, Enrique, Lundgren, Andreas, Milam, Stefanie N., Mohan, Atul, Moreno, Raphael, Motorina, Galina G., Moullet, Arielle, Pattle, Kate, Pellizzoni, Alberto, Peretto, Nicolas, Ramasawmy, Joanna, Ricci, Claudio, Rigby, Andrew J., Sánchez-Monge, Álvaro, Saberi, Maryam, Shimojo, Masumi, Simionescu, Aurora, Thompson, Mark, Traficante, Alessio, Vignali, Cristian, White, Stephen M.
Submillimeter and millimeter wavelengths provide a unique view of the Universe, from the gas and dust that fills and surrounds galaxies to the chromosphere of our own Sun. Current single-dish facilities have presented a tantalising view of the bright
Externí odkaz:
http://arxiv.org/abs/2407.01413
Autor:
Christensen, I. Barlach, Wyrowski, F., Veena, V. S., Beuther, H., Semenov, D., Menten, K. M., Jacob, A. M., Kim, W. -J., Cunningham, N., Gieser, C., Hacar, A., Li, S., Schneider, N., Skretas, I., Winters, J. M.
Publikováno v:
A&A 688, A215 (2024)
Deuterated molecules and their molecular D/H-ratios (RD(D)) are important diagnostic tools to study the physical conditions of star-forming regions. The degree of deuteration, RD(D), can be significantly enhanced over the elemental D/H-ratio dependin
Externí odkaz:
http://arxiv.org/abs/2406.09145
Publikováno v:
A&A 688, A30 (2024)
ALMA's high-resolution images allow to resolve the filamentary structure of the ISM down to few thousand au at kpc distances. We aim to systematically quantify the impact of the interferometric response and the effects of the short-spacing informatio
Externí odkaz:
http://arxiv.org/abs/2405.09290
Publikováno v:
A&A 687, A70 (2024)
Cosmic rays regulate the dynamics and the chemical processes in the densest and coldest regions of the ISM. Still, the determination of the cosmic-ray ionisation rate of H$_2$ (${\zeta^{\rm ion}_{{\rm H}_2}}$) is plagued by uncertainties in the adopt
Externí odkaz:
http://arxiv.org/abs/2404.15754
Autor:
Hacar, A., Socci, A., Bonanomi, F., Petry, D., Tafalla, M., Harsono, D., Forbrich, J., Alves, J., Grossschedl, J., Goicoechea, J. R., Pety, J., Burkert, A., Li, G. X.
Publikováno v:
A&A 687, A140 (2024)
(Abridged) Recent molecular surveys have revealed a rich gas organization of sonic-like fibers in all kind of environments prior to the formation of low- and high-mass stars. This paper introduces the EMERGE project aiming to investigate whether comp
Externí odkaz:
http://arxiv.org/abs/2403.08091