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相关论文: Molecular Line Observations of the Tornado Nebula …

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We present near-infrared and millimetre-line observations of the Tornado nebula (G357.7-0.1). We detected 2.12 micron_m H2 1-0 S(1) line emission towards the suspected site of interaction with a molecular cloud revealed by the presence of…

天体物理学 · 物理学 2009-11-10 J. S. Lazendic , M. Wardle , M. G. Burton , F. Yusef-Zadeh , A. J. Green , J. B. Whiteoak

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+…

星系天体物理 · 物理学 2015-06-22 Daisuke Sakai , Tomoharu Oka , Kunihiko Tanaka , Shinji Matsumura , Kodai Miura , Shunya Takekawa

We present infrared (AAT, UKIRT) and radio (VLA, SEST) observations of the Eye of the Tornado, a compact source apparently near the head of the Tornado Nebula. The near-infrared Br-gamma and He I lines are broad (FWHM 40 and 30 km/s,…

天体物理学 · 物理学 2009-11-10 M. G. Burton , J. S. Lazendic , F. Yusef-Zadeh , M. Wardle

(Abridged) Massive stars can determine the evolution of molecular clouds with their strong ultraviolet (UV) radiation fields. Moreover, UV radiation is relevant in setting the thermal gas pressure in star-forming clouds, whose influence can…

We present 7mm Mopra observations of the dense molecular gas towards the W28 supernova remnant (SNR) field, following a previous 12mm line survey of this region. These observations take advantage of the 7mm beam size to probe the dense and…

高能天体物理现象 · 物理学 2015-05-30 B. P. Nicholas , G. Rowell , M. G. Burton , A. J. Walsh , Y. Fukui , A. Kawamura , N. I. Maxted

A survey of the inner 8$^\circ \times 1^\circ$ of the Galactic plane toward the Galactic center has been carried out at the 1720 MHz transition of OH molecule using the VLA in its D configuration with a resolution of…

天体物理学 · 物理学 2009-05-20 F. Yusef-Zadeh , W. M. Goss , D. A. Roberts , B. Robinson , D. A. Frail

Molecular clouds are expected to emit non-thermal radiation due to cosmic ray interactions in the dense magnetized gas. Such emission is amplified if a cloud is located close to an accelerator of cosmic rays and if energetic particles can…

高能天体物理现象 · 物理学 2015-05-13 Stefano Gabici , Felix A. Aharonian , Sabrina Casanova

We carried out new $^{12}$CO($J$ = 1-0, 3-2) observations of a N63A supernova remnant (SNR) from the LMC using ALMA and ASTE. We find three giant molecular clouds toward the northeast, east, and near the center of the SNR. Using the ALMA…

We present IFU observations of six emission-line nebulae that surround the central galaxy of cool core clusters. Qualitatively similar nebulae are observed in cool core clusters even when the dynamics and possibly formation and excitation…

天体物理学 · 物理学 2009-11-13 N. A. Hatch , C. S. Crawford , A. C. Fabian

Molecular clouds are expected to emit non-thermal radiation due to cosmic ray interactions in the dense magnetized gas. Such emission is amplified if a cloud is located close to an accelerator of cosmic rays and if cosmic rays can leave the…

天体物理学 · 物理学 2009-11-13 Stefano Gabici , Sabrina Casanova , Felix A. Aharonian

The recent X-ray and CO observations of RX J1713.7-3946 show that a significant fraction of the nonthermal X-ray emission of this unique supernova remnant associates, in one way or another, with a molecular cloud interacting with the west…

天体物理学 · 物理学 2009-11-10 Y. Uchiyama , F. A. Aharonian , T. Takahashi , J. S. Hiraga , Y. Moriguchi , Y. Fukui

II Zw 40 is a starburst dwarf and merger product, and holds a radio-infrared supernebula excited by thousands of embedded OB stars. We present here observations of three aspects of the supernebula: maps of the K and KU radio continuum that…

星系天体物理 · 物理学 2024-10-24 Dan Beilis , Sara Beck , John Lacy , Jean L. Turner , Hauyu Baobab Liu , Paul T. P. Ho , S. Michelle Consiglio

Enormous Ly$\alpha$ nebulae, extending over 300-500\,kpc around quasars, represent the pinnacle of galaxy and cluster formation. Here we present IRAM Plateau de Bure Interferometer observations of the enormous Ly$\alpha$ nebulae `Slug'…

N103B is a Type Ia supernova remnant (SNR) in the Large Magellanic Cloud (LMC). We carried out new $^{12}$CO($J$ = 3-2) and $^{12}$CO($J$ = 1-0) observations using ASTE and ALMA. We have confirmed the existence of a giant molecular cloud…

We report high resolution imaging of a prominent cometary globule in the Helix nebula in the CO J=1-0 (2.6 mm) and H2 v=1-0 S(1) (2.12 micron) lines. The observations confirm that globules consist of dense condensations of molecular gas…

天体物理学 · 物理学 2009-11-07 P. J. Huggins , T. Forveille , R. Bachiller , P. Cox , N. Ageorges , J. R. Walsh

We present observations of the vdB 130 cluster vicinity in a narrow-band filter centered at a $2.12\,\mu$m molecular hydrogen line performed at the Caucasus Mountain Observatory of the Lomonosov Moscow State University. The observations…

Studying molecular gas properties in merging galaxies gives us important clues to the onset and evolution of interaction-triggered starbursts. NGC4194 is particularly interesting to study since its FIR-to-CO luminosity ratio rivals that of…

星系天体物理 · 物理学 2014-09-10 S. König , S. Aalto , L. Lindroos , S. Muller , J. S. Gallagher , R. J. Beswick , G. Petitpas , E. Jütte

We report new near-infrared and mm-wave observational data on a selection of massive Galactic molecular clumps (part of the CHaMP sample) and their associated young star clusters. The clumps show, for the first time in a "dense gas tracer",…

The Tornado nebula (G357.7-0.1) is a mysterious radio source with bright "head" and faint "tail" located in the direction of the Galactic center (GC) region. We here report the discovery of two diffuse X-ray sources at the head and tail of…

高能天体物理现象 · 物理学 2015-05-28 Makoto Sawada , Takeshi Go Tsuru , Katsuji Koyama , Tomoharu Oka

Mid-IR observations of planetary nebulae (PNe) have revealed diffuse emission associated to their main nebular shells and outer envelopes or haloes. The interpretation of this emission is uncertain because the broad-band mid-IR images may…

星系天体物理 · 物理学 2016-11-26 R. A. Marquez-Lugo , G. Ramos-Larios , M. A. Guerrero , R. Vazquez
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