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Related papers: A detailed analysis on the cloud structure and dyn…

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We present a catalogue of 453 molecular clouds in M31 extracted from CO J=1-0 data observed with CARMA using a dendrogram. Our clouds have the mean values of 2.8 km s$^{-1}$, 22.1 pc and 10$^{5.2}$ M$_\odot$ for the velocity dispersion,…

Astrophysics of Galaxies · Physics 2025-12-30 J. Armijos-Abendaño , S. A. Eales , M. W. L. Smith

We report serendipitous detections of line emission with the Atacama Large Millimeter/submillimeter Array (ALMA) in band 3, 6, and 7 in the central parsec down to within 1" around Sgr A* at an up to now highest resolution (<0.5") view of…

We present a sub-100 pc-scale analysis of the CO molecular gas emission and kinematics of the gravitational lens system SDP.81 at redshift 3.042 using Atacama Large Millimetre/submillimetre Array (ALMA) science verification data and a…

Astrophysics of Galaxies · Physics 2015-08-19 M. Rybak , S. Vegetti , J. P. McKean , P. Andreani , S. D. M. White

Herein, we present the 12CO (J=1-0) and 13CO (J=1-0) emission line observations via the FOREST Unbiased Galactic plane Imaging survey with the Nobeyama 45-m telescope (FUGIN) toward a Spitzer bubble N4. We observed clouds of three discrete…

The W49A star-forming region is embedded in a 10^6 solar mass molecular cloud, one of the most massive in our Galaxy. It has been long known as one of the most luminous radio HII regions, containing 30-40 compact and ultracompact HII…

Astrophysics · Physics 2007-05-23 N. L. Homeier , J. Alves

We analyze the carbon monoxide emission around the star WR 16 aiming to chieve a better understanding of the interaction between massive stars with their surroundings. We study the molecular gas in a region of 86.'4 x 86.'4 in size using CO…

Solar and Stellar Astrophysics · Physics 2015-06-12 N. U. Duronea , E. M. Arnal , L. Bronfman

We report the results of the CO $\textit J$=1-0 and SiO $\textit J$=2-1 mapping observations towards the broad-velocity-width molecular feature CO 16.134-0.553 with the Nobeyama Radio Observatory 45 m telescope. The high quality CO map…

Astrophysics of Galaxies · Physics 2024-04-16 Hiroki Yokozuka , Tomoharu Oka , Shiho Tsujimoto , Yuto Watanabe , Miyuki Kaneko

We have conducted Q-band (30 GHz $-$ 50 GHz) line survey observations toward a carbon-chain emission peak in the Serpens South cluster-forming region with the extended Q-band (eQ) receiver installed on the Nobeyama 45 m radio telescope.…

We report on the discovery of linear filaments observed in CO(1-0) emission for a $\sim2'$ field of view toward the Sgr E star forming region centered at (l,b)=(358.720$^\circ$, 0.011$^\circ$). The Sgr E region is thought to be at the…

We report molecular line and dust continuum observations toward the high-mass star forming region G331.5-0.1, one of the most luminous regions of massive star-formation in the Milky Way, located at the tangent region of the Norma spiral…

Astrophysics of Galaxies · Physics 2015-06-16 Manuel Merello , Leonardo Bronfman , Guido Garay , Lars-Ake Nyman , Neal J. Evans , C. Malcolm Walmsley

Water fountain stars represent a stage between the asymptotic giant branch (AGB) and planetary nebulae phases, when the mass loss changes from spherical to bipolar. These types of evolved objects are characterized by high-velocity jets in…

Astrophysics of Galaxies · Physics 2015-06-17 J. R. Rizzo , J. F. Gomez , L. F. Miranda , M. Osorio , O. Suarez , M. C. Duran-Rojas

We present new aperture synthesis CO maps of the Antennae (NGC 4038/39) obtained with the Caltech Millimeter Array. These sensitive images show molecular emission associated with the two nuclei and a partial ring of star formation to the…

Astrophysics · Physics 2009-10-31 C. D. Wilson , N. Scoville , S. C. Madden , V. Charmandaris

The Galactic Center 50 km s$^{-1}$ Molecular Cloud (50MC) is the most remarkable molecular cloud in the Sagittarius A region. This cloud is a candidate for the massive star formation induced by cloud-cloud collision (CCC) with a collision…

Astrophysics of Galaxies · Physics 2019-03-07 Kenta Uehara , Masato Tsuboi , Yoshimi Kitamura , Ryosuke Miyawaki

We have mapped [Ne II] (12.8um) and [S IV] (10.5um) emission from W51 IRS 2 with TEXES on Gemini North, and we compare these data to VLA free-free observations and VLT near-infrared images. With 0.5" spatial and 4 km/s spectral resolution…

Galactic supernova remnants (SNRs) play an important role in our understanding of supernovae and their feedback on the interstellar environment. SNR G352.7$-$0.1 is special for its thermal composite morphology and double-ring structure. We…

High Energy Astrophysical Phenomena · Physics 2023-07-24 Qian-Qian Zhang , Ping Zhou , Yang Chen , Xiao Zhang , Wen-Juan Zhong , Xin Zhou , Zhi-Yu Zhang , Jacco Vink

We present a new CO observation toward the Type Ia supernova remnant (SNR) 3C 397 using the Nobeyama 45-m radio telescope at an unprecedent angular resolution of $\sim$18''. We newly found that the CO cloud at $V_{\mathrm{LSR}}$ = 55.7-62.2…

High Energy Astrophysical Phenomena · Physics 2024-11-22 Daisuke Ito , Hidetoshi Sano , Kazuhiro Nakazawa , Ikuyuki Mitsuishi , Yasuo Fukui , Hiroshi Sudou , Hiroshi Takaba

To reveal the origin of the mini-starbursts in the Milky Way, we carried out large-scale CO observations toward the RCW 106 giant molecular cloud (GMC) complex using the NANTEN2 4-m radio telescope operated by Nagoya University. We also…

We analyse archival ALMA (Atacama Large Millimeter/submillimeter Array) observations of two molecular line emissions, $^{12}$CO(3-2) and $^{29}$SiO(8-7), from oxygen-rich AGB (Asymptotic Giant Branch) star W Hya. Together with results of…

Solar and Stellar Astrophysics · Physics 2022-11-07 Do Thi Hoai , Pham Tuyet Nhung , Pierre Darriulat , Pham Ngoc Diep , Nguyen Bich Ngoc , Tran Thi Thai , Pham Tuan-Anh

When accretion temporarily ceases in the polar AM Her, the emission line profiles are known to develop several distinct components, whose origin remains poorly understood. The new low-state spectra reported here have a more favorable…

Astrophysics · Physics 2009-11-13 S. Kafka , T. Ribeiro , R. Baptista , R. K. Honeycutt , J. W. Robertson