@article{MTMT:31134617, title = {A double core in the Auriga-California Molecular Cloud}, url = {https://m2.mtmt.hu/api/publication/31134617}, author = {Zahorecz, Sarolta and Molnar, Daniel and Kraus, Alex and Onishi, Toshikazu}, doi = {10.1017/S1743921319001753}, journal-iso = {PROC IAU}, journal = {PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION}, volume = {14}, unique-id = {31134617}, issn = {1743-9213}, year = {2020}, eissn = {1743-9221}, pages = {335-336} } @article{MTMT:31133300, title = {Deuteration of formaldehyde - an important precursor of hydrogenated complex organic molecules - during star formation in our Galaxy}, url = {https://m2.mtmt.hu/api/publication/31133300}, author = {Zahorecz, Sarolta and Jimenez-Serra, Izaskun and Testi, Leonardo and Immer, Katharina and Fontani, Francesco and Caselli, Paola and Tóth, László Viktor and Wang, Ke and Onishi, Toshikazu}, doi = {10.1017/S1743921319001765}, journal-iso = {PROC IAU}, journal = {PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION}, volume = {14}, unique-id = {31133300}, issn = {1743-9213}, year = {2020}, eissn = {1743-9221}, pages = {337-338}, orcid-numbers = {Tóth, László Viktor/0000-0002-5310-4212} } @article{MTMT:31125851, title = {Physical Conditions in the LMC's Quiescent Molecular Ridge: Fitting Non-LTE Models to CO Emission}, url = {https://m2.mtmt.hu/api/publication/31125851}, author = {Finn, M. K. and Indebetouw, R. and Johnson, K. E. and Costa, A. H. and Chen, C. and Onishi, T. and Ott, J. and Tokuda, K. and Wong, T. and Zahorecz, Sarolta}, journal-iso = {BULL AM ASTRON SOC}, journal = {BULLETIN OF THE AMERICAN ASTRONOMICAL SOCIETY}, volume = {52}, unique-id = {31125851}, issn = {0002-7537}, year = {2020}, pages = {509-510} } @article{MTMT:31126043, title = {CO / CI observations of N83C in the early stage of star formation in SMC with ALMA}, url = {https://m2.mtmt.hu/api/publication/31126043}, author = {Zahorecz, Sarolta and Onishi, Toshikazu and Muraoka, Kazuyuki and Homma, Aya and Harada, Ryohei and Takada, Shota and Maezawa, Hiroyuki and Tokuda, Kazuki and Saigo, Kazuya and Kawamura, Akiko and Mizuno, Norikazu and Minamidani, Tetsuhiro and Meixner, Margaret and Indebetouw, Remy and Sewilo, Marta and Fukui, Yasuo and Bolatto, Alberto}, doi = {10.1017/S1743921318007706}, journal-iso = {PROC IAU}, journal = {PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION}, volume = {14}, unique-id = {31126043}, issn = {1743-9213}, year = {2019}, eissn = {1743-9221}, pages = {313-315} } @article{MTMT:31125937, title = {Relations between Molecular Cloud Structure Sizes and Line Widths in the Large Magellanic Cloud}, url = {https://m2.mtmt.hu/api/publication/31125937}, author = {Wong, Tony and Hughes, Annie and Tokuda, Kazuki and Indebetouw, Rémy and Onishi, Toshikazu and Bandurski, Jeffrey B. and Chen, C.-H. Rosie and Fukui, Yasuo and Glover, Simon C. O. and Klessen, Ralf S. and Pineda, Jorge L. and Roman-Duval, Julia and Sewiło, Marta and Wojciechowski, Evan and Zahorecz, Sarolta}, doi = {10.3847/1538-4357/ab46ba}, journal-iso = {ASTROPHYS J}, journal = {ASTROPHYSICAL JOURNAL}, volume = {885}, unique-id = {31125937}, issn = {1538-4357}, year = {2019}, eissn = {0004-637X}, pages = {50} } @article{MTMT:31125825, title = {Complex Organic Molecules in Star-Forming Regions of the Magellanic Clouds}, url = {https://m2.mtmt.hu/api/publication/31125825}, author = {Sewiło, Marta and Charnley, Steven B. and Schilke, Peter and Taquet, Vianney and Oliveira, Joana M. and Shimonishi, Takashi and Wirström, Eva and Indebetouw, Remy and Ward, Jacob L. and van Loon, Jacco Th. and Wiseman, Jennifer and Zahorecz, Sarolta and Onishi, Toshikazu and Kawamura, Akiko and Chen, C.-H. Rosie and Fukui, Yasuo and Hamedani Golshan, Roya}, doi = {10.1021/acsearthspacechem.9b00065}, journal-iso = {ACS EARTH SPACE CHEM}, journal = {ACS EARTH AND SPACE CHEMISTRY}, volume = {3}, unique-id = {31125825}, issn = {2472-3452}, year = {2019}, eissn = {2472-3452}, pages = {2088-2109} } @article{MTMT:31086974, title = {An ALMA View of Molecular Filaments in the Large Magellanic Cloud. II. An Early Stage of High-mass Star Formation Embedded at Colliding Clouds in N159W-South}, url = {https://m2.mtmt.hu/api/publication/31086974}, author = {Tokuda, Kazuki and Fukui, Yasuo and Harada, Ryohei and Saigo, Kazuya and Tachihara, Kengo and Tsuge, Kisetsu and Inoue, Tsuyoshi and Torii, Kazufumi and Nishimura, Atsushi and Zahorecz, Sarolta and Nayak, Omnarayani and Meixner, Margaret and Minamidani, Tetsuhiro and Kawamura, Akiko and Mizuno, Norikazu and Indebetouw, Remy and Sewilo, Marta and Madden, Suzanne and Galametz, Maud and Lebouteiller, Vianney and Chen, C. -H. Rosie and Onishi, Toshikazu}, doi = {10.3847/1538-4357/ab48ff}, journal-iso = {ASTROPHYS J}, journal = {ASTROPHYSICAL JOURNAL}, volume = {886}, unique-id = {31086974}, issn = {1538-4357}, abstract = {We have conducted ALMA CO isotopes and 1.3 mm continuum observations toward filamentary molecular clouds of the N159W-South region in the Large Magellanic Cloud with an angular resolution of ?025 (?0.07 pc). Although the previous lower-resolution (?1?) ALMA observations revealed that there is a high-mass protostellar object at an intersection of two line-shaped filaments in (CO)-C-13 with the length scale of ?10 pc, the spatially resolved observations, in particular, toward the highest column density part traced by the 1.3 mm continuum emission, the N159W-South clump, show complicated hub-filamentary structures. We also discovered that there are multiple protostellar sources with bipolar outflows along the massive filament. The redshifted/blueshifted components of the (CO)-C-13 emission around the massive filaments/protostars have complementary distributions, which is considered to be possible evidence for a cloud?cloud collision. We propose a new scenario in which the supersonically colliding gas flow triggers the formation of both the massive filament and protostars. This is a modification of the earlier scenario of cloud?cloud collision, by Fukui et al., that postulated the two filamentary clouds occur prior to the high-mass star formation. A recent theoretical study of the shock compression in colliding molecular flows by Inoue et al. demonstrates that the formation of filaments with hub structure is a usual outcome of the collision, lending support for the present scenario. The theory argues that the filaments are formed as dense parts in a shock compressed sheet-like layer, which resembles ?an umbrella with pokes.?}, keywords = {Ism: clouds; stars: formation; ISM: kinematics and dynamics; stars: protostars; ISM: individual objects (N159W)}, year = {2019}, eissn = {0004-637X}, orcid-numbers = {Zahorecz, Sarolta/0000-0001-6149-1278} } @article{MTMT:31086868, title = {An ALMA View of Molecular Filaments in the Large Magellanic Cloud. I. The Formation of High-mass Stars and Pillars in the N159E-Papillon Nebula Triggered by a Cloud?Cloud Collision}, url = {https://m2.mtmt.hu/api/publication/31086868}, author = {Fukui, Yasuo and Tokuda, Kazuki and Saigo, Kazuya and Harada, Ryohei and Tachihara, Kengo and Tsuge, Kisetsu and Inoue, Tsuyoshi and Torii, Kazufumi and Nishimura, Atsushi and Zahorecz, Sarolta and Nayak, Omnarayani and Meixner, Margaret and Minamidani, Tetsuhiro and Kawamura, Akiko and Mizuno, Norikazu and Indebetouw, Remy and Sewilo, Marta and Madden, Suzanne and Galametz, Maud and Lebouteiller, Vianney and Chen, C. -H. Rosie and Onishi, Toshikazu}, doi = {10.3847/1538-4357/ab4900}, journal-iso = {ASTROPHYS J}, journal = {ASTROPHYSICAL JOURNAL}, volume = {886}, unique-id = {31086868}, issn = {1538-4357}, abstract = {We present ALMA observations of CO isotopes and 1.3 mm continuum emission toward the N159E-Papillon Nebula in the Large Magellanic Cloud (LMC). The spatial resolution is 025?028 (0.06?0.07 pc), which is a factor of 3 higher than previous ALMA observations in this region. The high resolution allowed us to resolve highly filamentary CO distributions with typical widths of ?0.1 pc (full width half maximum) and line masses of a few 100 M pc(?1). The filaments (more than ten in number) show an outstanding hub-filament structure emanating from the nebular center toward the north. We identified for the first time two massive protostellar outflows of ?10(4) yr dynamical age along one of the most massive filaments. The observations also revealed several pillar-like CO features around the Nebula. The H ii region and the pillars have a complementary spatial distribution and the column density of the pillars is an order of magnitude higher than that of the pillars in the Eagle nebula (M16) in the Galaxy, suggesting an early stage of pillar formation with an age younger than ?10(5) yr. We suggest that a cloud?cloud collision triggered the formation of the filaments and protostar within the last ?2 Myr. It is possible that the collision is more recent, as part of the kpc-scale H i flows come from the tidal interaction resulting from the close encounter between the LMC and SMC ?200 Myr ago as suggested for R136 by Fukui et al.}, keywords = {Ism: clouds; stars: formation; ISM: kinematics and dynamics; stars: protostars; ISM: individual (N159E)}, year = {2019}, eissn = {0004-637X}, orcid-numbers = {Zahorecz, Sarolta/0000-0001-6149-1278} } @article{MTMT:30861488, title = {Multi-scale analysis of the Monoceros OB 1 star-forming region. II. Colliding filaments in the Monoceros OB1 molecular cloud}, url = {https://m2.mtmt.hu/api/publication/30861488}, author = {Montillaud, Julien and Juvela, Mika and Vastel, Charlotte and He, Jinhua and Liu, Tie and Ristorcelli, Isabelle and Eden, David J. and Kang, Sung-ju and Kim, Kee-Tae and Koch, Patrick M. and Lee, Chang Won and Rawlings, Mark G. and Saajasto, Mika and Sanhueza, Patricio and Soam, Archana and Zahorecz, Sarolta and Alina, Dana and Bőgner, Rebeka and Cornu, David and Doi, Yasuo and Malinen, Johanna and Marshall, Douglas J. and Micelotta, Elisabetta R. and Pelkonen, Veli-Matti and Tóth, László Viktor and Traficante, Alessio and Wang, Ke}, doi = {10.1051/0004-6361/201834903}, journal-iso = {ASTRON ASTROPHYS}, journal = {ASTRONOMY & ASTROPHYSICS}, volume = {631}, unique-id = {30861488}, issn = {0004-6361}, abstract = {Context. We started a multi-scale analysis of star formation in G202.3+2.5, an intertwined filamentary sub-region of the Monoceros OB molecular complex, in order to provide observational constraints o current theories and models that attempt to explain star formatio globally. In the first paper (Paper I), we examined the distributions o dense cores and protostars and found enhanced star formation activity i the junction region of the filaments. Aims: In this second paper we aim to unveil the connections between the core and filamen evolutions, and between the filament dynamics and the global evolutio of the cloud. Methods: We characterise the gas dynamics an energy balance in different parts of G202.3+2.5 using infrare observations from the Herschel and WISE telescopes and molecular tracer observed with the IRAM 30-m and TRAO 14-m telescopes. The velocity fiel of the cloud is examined and velocity-coherent structures ar identified, characterised, and put in perspective with the clou environment. Results: Two main velocity components are revealed, well separated in radial velocities in the north and merged around th location of intense N2H+ emission in the centre o G202.3+2.5 where Paper I found the peak of star formation activity. W show that the relative position of the two components along th sightline, and the velocity gradient of the N2H emission imply that the components have been undergoing collision fo 105 yr, although it remains unclear whether the gas move mainly along or across the filament axes. The dense gas wher N2H+ is detected is interpreted as the compresse region between the two filaments, which corresponds to a high mas inflow rate of 1 × 10-3 M☉ yr-1 an possibly leads to a significant increase in its star formatio efficiency. We identify a protostellar source in the junction regio that possibly powers two crossed intermittent outflows. We show that th H II region around the nearby cluster NCG 2264 is still expanding an its role in the collision is examined. However, we cannot rule out th idea that the collision arises mostly from the global collapse of th cloud. Conclusions: The (sub-)filament-scale observables examined in this paper reveal a collision between G202.3+2.5 sub-structures an its probable role in feeding the cores in the junction region. To she more light on this link between core and filament evolutions, one mus characterise the cloud morphology, its fragmentation, and magneti field, all at high resolution. We consider the role of the environmen in this paper, but a larger-scale study of this region is now necessar to investigate the scenario of a global cloud collapse. The reduce datacubes (FITS files) of our IRAM and TRAO observations are onl available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.f bin/cat/J/A+A/631/A3}, keywords = {Ism: clouds; stars: formation; Astrophysics - Astrophysics of Galaxies}, year = {2019}, eissn = {1432-0746}, orcid-numbers = {Tóth, László Viktor/0000-0002-5310-4212} } @article{MTMT:30809095, title = {A centrally concentrated sub-solar-mass starless core in the Taurus L1495 filamentary complex}, url = {https://m2.mtmt.hu/api/publication/30809095}, author = {Tokuda, K. and Tachihara, K. and Saigo, K. and André, P. and Miyamoto, Y. and Zahorecz, Sarolta and Inutsuka, S.-I. and Matsumoto, T. and Takashima, T. and Machida, M.N. and Tomida, K. and Taniguchi, K. and Fukui, Y. and Kawamura, A. and Tatematsu, K. and Kandori, R. and Onishi, T.}, doi = {10.1093/pasj/psz051}, journal-iso = {PUBL ASTRON SOC JPN}, journal = {PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN}, volume = {71}, unique-id = {30809095}, issn = {0004-6264}, year = {2019}, eissn = {2053-051X} }