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Related papers: M0.20-0.033: An Expanding Molecular Shell in the G…

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We present NH3 and H64a+H63a VLA observations of the Radio Arc region, including the M0.20-0.033 and G0.10-0.08 molecular clouds. These observations suggest the two velocity components of M0.20-0.033 are physically connected in the south.…

Astrophysics of Galaxies · Physics 2017-02-22 N. Butterfield , C. C. Lang , E. A. C. Mills , D. Ludovici , J. Ott , M. R. Morris

We present high-resolution (~2-3"; ~0.1 pc) radio observations of the Galactic center cloud M0.10-0.08 using the Very Large Array at K and Ka band (~25 and 36 GHz). The M0.10-0.08 cloud is located in a complex environment near the Galactic…

Astrophysics of Galaxies · Physics 2022-09-21 Natalie O. Butterfield , Cornelia C. Lang , Adam Ginsburg , Mark R. Morris , Juergen Ott , Dominic A. Ludovici

The $l=-1.2^{\circ}$ region in the Galactic center has a high CO $J$=3-2/$J$=1-0 intensity ratio and extremely broad velocity width. This paper reports the detection of five expanding shells in the $l=-1.2^{\circ}$ region based on the CO…

Astrophysics of Galaxies · Physics 2018-04-11 Shiho Tsujimoto , Tomoharu Oka , Shunya Takekawa , Masaya Yamada , Sekito Tokuyama , Yuhei Iwata , Justin A. Roll

The $l\!=\!+1.\!\!^\circ3$ region in the Galactic center is characterized by multiple shell-like structures and their extremely broad velocity widths. We revisit the molecular superbubble hypothesis for this region, based on high resolution…

We present the results of ALMA observations in $^{12}$CO($J=2-1$), $^{13}$CO($J=2-1$), and C$^{18}$O($J=2-1$) lines and 1.3 mm continuum emission toward a massive ($\sim 10^6 M_{\odot}$) giant molecular cloud associated with the giant H II…

We present a survey of molecular gas in the J = 1 -> 0 transition of 12CO towards the IRAS Vela shell. The shell, previously identified from IRAS maps, is a ring-like structure seen in the region of the Gum Nebula. We confirm the presence…

Astrophysics · Physics 2007-05-23 Jayadev Rajagopal , G. Srinivasan

We report the results of observations toward the center of the molecular cloud CO 0.02-0.02 made using the Atacama Large Millimeter/Submillimeter Array. The successfully obtained 1 arcsec resolution images of CO $J$=3-2, H$^{13}$CN $J$=4-3,…

Astrophysics of Galaxies · Physics 2023-06-14 Yuhei Iwata , Tomoharu Oka , Shunya Takekawa , Shiho Tsujimoto , Rei Enokiya

We present the discovery of seven molecular clouds in the radio galaxy B2 0902+34 at redshift z=3.4. These clouds are detected as CO(0-1) absorption features against the bright radio continuum, and spectrally resolved using the Karl G.…

We report the results of molecular line observations toward the l=1.3 deg complex, ananomalous cloud complex in the central molecular zone of the Galaxy. We have taken high resolution maps of the CO J=1-0, HCN J=1-0, HCO+ J=1-0, SiO J=1-0…

Astrophysics · Physics 2007-05-23 Kunihiko Tanaka , Kazuhisa Kamegai , Makoto Nagai , Tomoharu Oka

MS 0735.6+7421 ($z = 0.216$) is a massive cool core galaxy cluster hosting one of the most powerful active galactic nuclei (AGN) outbursts known. The radio jets of the AGN have carved out an unusually large pair of X-ray cavities, each…

The Owens Valley Radio Observatory (OVRO) millimeter array was used to make observations of the CS(2-1) line (at 97.981 GHz) arising from the G0.07+0.04 region of the ``-30 km/s'' molecular cloud near the Galactic center with a spatial…

Astrophysics · Physics 2009-11-07 Cornelia C. Lang , W. M. Goss , Mark Morris

ALMA imaging of the cold molecular medium in the nearby starburst galaxy NGC 1808 is presented. The observations reveal the distribution of molecular gas, traced by $^{12}$CO (1-0) and $^{12}$CO (3-2), and continuum (93 and 350 GHz) across…

Astrophysics of Galaxies · Physics 2017-11-15 Dragan Salak , Yuto Tomiyasu , Naomasa Nakai , Nario Kuno , Yusuke Miyamoto , Hiroyuki Kaneko

We present $^{12}$CO ($J$ = 2-1), $^{13}$CO ($J$ = 2-1), and C$^{18}$O ($J$ = 2-1) observations toward GMC-8, one of the most massive giant molecular clouds (GMCs) in M33 using ALMA with an angular resolution of 0".44 $\times$ 0".27…

We present Karl G. Jansky Very Large Array (VLA) K-band (19 GHz) observations of the redshifted CO(1-0) line emission toward the radio galaxy TN J0924$-$2201 at $z=5.2$, which is one of the most distant CO-detected radio galaxies. With 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

We report the results of millimeter-wave molecular line observations of the Tornado Nebula (G357.7--0.1), which is a bright radio source behind the Galactic Center region. A 15'x15' area was mapped in the J=1--0 lines of CO, 13CO, and HCO+…

Astrophysics of Galaxies · Physics 2015-06-22 Daisuke Sakai , Tomoharu Oka , Kunihiko Tanaka , Shinji Matsumura , Kodai Miura , Shunya Takekawa

We report the detection of extremely broad emission toward two molecular clumps in the Galactic central molecular zone. We have mapped the Sagittarius C complex ($-0^\circ.61 < l < -0^\circ.27$, $-0^\circ.29 < b < 0^\circ.04$) in the HCN…

Astrophysics of Galaxies · Physics 2015-06-18 Kunihiko Tanaka , Tomoharu Oka , Shinji Matsumura , Makoto Nagai , Kazuhisa Kamegai

The high velocity dispersion compact cloud CO-0.30-0.07 is a peculiar molecular clump discovered in the central moleculr zone of the Milky Way, which is characterized by its extremely broad velocity emissions ($\sim 145\ \rm{km s^{-1}}$)…

Astrophysics of Galaxies · Physics 2023-06-28 Kunihiko Tanaka , Makoto Nagai , Kazuhisa Kamegai , Tomoharu Oka

We present the statistical properties of molecular clumps in the Galactic center 50 km s$^{-1}$ molecular cloud (GCM-0.02-0.07) based on observations of the CS $J=1-0$ emission line with the Nobeyama Millimeter Array. In the cloud, 37…

Astrophysics of Galaxies · Physics 2015-06-04 Masato Tsuboi , Atsushi Miyazaki

The object of this study is one of the most energetic and luminous molecular outflows known in the Galaxy, G331.512-0.103. Observations with ALMA Band 7 (350 GHz; 0.86 mm) reveal a very compact, extremely young bipolar outflow and a more…

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