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相关论文: Spectral imaging of the Central Molecular Zone in …

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We have imaged 24 spectral lines in the Central Molecular Zone (CMZ) around the Galactic Centre, in the range 42 to 50 GHz. The lines include emission from the CS, CH3OH, HC3N, SiO, HNCO, HOCO+, NH2CHO, OCS, HCS+, CCS, C34S, 13CS, 29SiO,…

星系天体物理 · 物理学 2015-06-15 P. A. Jones , M. G. Burton , M. R. Cunningham , N. F. H. Tothill , A. J. Walsh

We present 10um-35um Spitzer spectra of the interstellar medium in the Central Molecular Zone (CMZ), the central 210 pc x 60 pc of the Galactic center (GC). We present maps of the CMZ in ionic and H2 emission, covering a more extensive area…

星系天体物理 · 物理学 2015-06-15 Deokkeun An , Solange V. Ramírez , Kris Sellgren

The Central Molecular Zone (CMZ) of the Galactic Center has to date only been fully mapped at mm wavelengths with singledish telescopes, with resolution about 30$^{\prime\prime}$ (1.2 pc). Using CARMA, we mapped the innermost 0.25 square…

星系天体物理 · 物理学 2017-11-29 Marc W. Pound , Farhad Yusef-Zadeh

We have used the BIMA array to image the Galactic Center with a 19-pointing mosaic in HCN(1-0), HCO+(1-0), and H 42-alpha emission with 5 km/s velocity resolution and 13'' x 4'' angular resolution. The 5' field includes the circumnuclear…

天体物理学 · 物理学 2009-10-31 Melvyn C. H. Wright , Alison L. Coil , Robeson S. McGary , Paul T. P. Ho , Andrew I. Harris

We have undertaken a spectral-line imaging survey of a 6 x 6 arcmin^2 area around Sgr B2 near the centre of the Galaxy, in the range from 30 to 50 GHz, using the Mopra telescope. The spatial resolution varies from 1.0 to 1.4 arcmin and the…

星系天体物理 · 物理学 2015-05-20 P. A. Jones , M. G. Burton , N. F. H. Tothill , M. R. Cunningham

We present a large-scale survey of the central molecular zone (CMZ) of our Galaxy, as well as a monitoring program of Sgr A*, with the AzTEC/Large Millimeter Telescope (LMT) in the 1.1 mm continuum. Our 1.1 mm map covers the main body of…

The Galactic Central Molecular Zone (CMZ) is a region containing massive and dense molecular clouds, with dynamics driven by a variety of energy sources including a massive black hole. It is thus the nearest template for understanding…

星系天体物理 · 物理学 2017-01-16 W. D. Langer , T. Velusamy , M. R. Morris , P. F. Goldsmith , J. L. Pineda

By mapping the molecular fraction of the Galactic Center (GC), we quantitatively address the question of how much molecular and central the CMZ (Central Molecular Zone) is. For this purpose we analyze the CO and HI-line archival data, and…

星系天体物理 · 物理学 2022-09-14 Yoshiaki Sofue

We report 350 and 230 GHz observations of molecular gas and dust in the starburst nucleus of NGC 253 at 20-40 pc (1"-2") resolution. The data contain CO(3-2), HCN(4-3), CO(2-1), 13CO(2-1), C18O(2-1), and continuum at 0.87 mm and 1.3 mm…

宇宙学与河外天体物理 · 物理学 2015-05-27 Kazushi Sakamoto , Rui-Qing Mao , Satoki Matsushita , Alison B. Peck , Tsuyoshi Sawada , Martina C. Wiedner

The Central Molecular Zone (CMZ), covering the inner ~1$^\circ$ of the Galactic plane has been mapped at 2 mm using the GISMO bolometric camera on the 30 m IRAM telescope. The $21''$ resolution maps show abundant emission from cold…

The molecular gas in the Central Molecular Zone (CMZ) of the Galaxy has been studied using infrared absorption spectra of H$_3^+$ lines at 3.5-4.0 $\mu$m and CO lines near 2.34 $\mu$m. In addition to the previously reported spectra of these…

高能天体物理现象 · 物理学 2019-10-14 Takeshi Oka , T. R. Geballe , Miwa Goto , Tomonori Usuda , Benjamin , J. McCall , Nick Indriolo

We present the results of two Mopra 3-mm spectral line surveys of the Lines of Sight (LOS) toward the Galactic Center (GC) molecular complexes Sgr B2 (LOS+0.693) and Sgr A (LOS-0.11). The spectra covered the frequency ranges of ~77-93 GHz…

We present first results from a submillimetre continuum survey of the Galactic Centre `Central Molecular Zone' (CMZ), made with SCUBA on the James Clerk Maxwell Telescope. SCUBA's scan-map mode has allowed us to make extremely wide-field…

Infrared absorption lines of H3+, including the metastable R(3,3)l line, have been observed toward eight bright infrared sources associated with hot and massive stars located in and between the Galactic Center Cluster and the Quintuplet…

天体物理学 · 物理学 2009-11-13 Miwa Goto , T. Usuda , T. Nagata , T. R. Geballe , B. J. McCall , N. Indriolo , H. Suto , Th. Henning , C. P. Morong , Takeshi Oka

The Galactic Center regions $-6^\circ \le l \le 6^\circ$ and $-0.8^\circ \le b \le 0.87^\circ$ are surveyed with HCN J=1$-$0 line (88.6 GHz) on a 4$'$ grid with the 14 m telescope at the Taeduk Radio Astronomy Observatory. The data…

天体物理学 · 物理学 2009-10-28 Chang Won Lee

In order to study a molecular-cloud-scale chemical composition, we have conducted a mapping spectral line survey toward the Galactic molecular cloud W3(OH), which is one of the most active star forming regions in the Perseus arm, with the…

Since the discovery of a broad distribution of very high energy (VHE; >0.1 TeV) gamma-rays in the Central Molecular Zone (CMZ) of the Galaxy in 2006 by the HESS collaboration, the correlation of this emission with the integrated intensity…

高能天体物理现象 · 物理学 2011-04-04 David I. Jones , Michael Burton , Paul Jones , Andrew Walsh , Gavin Rowell , Felix Aharonian

Using the Mopra telescope, we have undertaken a 3-mm spectral-line imaging survey of a 5 x 5 arcmin^2 area around Sgr B2. We covered almost the complete spectral the range from 81.7 to 113.5 GHz, with 2.2 MHz wide spectral channels or ~ 6…

天体物理学 · 物理学 2009-11-13 P. A. Jones , M. G. Burton , M. R. Cunningham , K. M. Menten , P. Schilke , A. Belloche , S. Leurini , J. Ott , A. J. Walsh

We report serendipitous detections of line emission with ALMA in band 3, 6, and 7 in the central parsec of the Galactic center at an up to now highest resolution (<0.7''). Among the highlights are the very first and highly resolved images…

The Milky Way's Central Molecular Zone (CMZ) is the largest concentration of dense molecular gas in the Galaxy, the structure of which is shaped by the complex interplay between Galactic-scale dynamics and extreme physical conditions.…

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