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(Abridged) Astronomers recently started discovering exoplanets around binary systems. Therefore, understanding the formation and evolution of circumbinary disks is crucial for a complete scenario of planet formation. The aim of this paper…

Solar and Stellar Astrophysics · Physics 2018-06-13 E. Artur de la Villarmois , L. E. Kristensen , J. K. Jørgensen , E. A. Bergin , C. Brinch , S. Frimann , D. Harsono , N. Sakai , S. Yamamoto

We present polarization observations in DR21(OH) from thermal dust emission at 3 mm and from CO J=1-0 line emission. The observations were obtained using the Berkeley-Illinois-Maryland Association array. Previous observations of this region…

Astrophysics · Physics 2009-11-11 P. C. Cortes , R. M. Crutcher , W. D. Watson

We present a multi-wavelength investigation of a large-scale physical system containing the W33 complex. The extended system (~50 pc x 37 pc) is selected based on the distribution of molecular gas at [29.6, 60.2] km/s and of 88 ATLASGAL 870…

Astrophysics of Galaxies · Physics 2020-06-10 L. K. Dewangan , T. Baug , D. K. Ojha

We have mapped the dust continuum emission from the molecular cloud covering a region of 28pcx94pc associated with the well-known HII region RCW 106 at 1.2 mm using SIMBA on SEST. The observations, having an HPBW of 24" (0.4 pc), reveal 95…

Astrophysics · Physics 2009-11-10 B. Mookerjea , C. Kramer , M. Nielbock , L. -A. Nyman

Observations of cosmic microwave background in the range 10-90 GHz have revealed an anomalous foreground component well correlated with 12 \mum, 60 \mum and 100 \mum emission from interstellar dust. As the recent cross-correlation analysis…

Astrophysics · Physics 2007-05-23 A. Lazarian

High dust density in the midplane of protoplanetary disks is favorable for efficient grain growth and can allow fast formation of planetesimals and planets, before disks dissipate. Vertical settling and dust trapping in pressure maxima are…

Solar and Stellar Astrophysics · Physics 2022-05-11 M. Villenave , K. R. Stapelfeldt , G. Duchene , F. Menard , M. Lambrechts , A. Sierra , C. Flores , W. R. F. Dent , S. Wolff , A. Ribas , M. Benisty , N. Cuello , C. Pinte

We propose a method that uses near-infrared plus uvby photometry to identify potentially extensive circumstellar dusty environment about F and A stars. The method has been applied to a sample of ~900 metal rich reddened F stars with 2MASS…

Astrophysics · Physics 2009-11-07 A. A. Suchkov , A. B. Schultz , C. M. Lisse

Infrared emission from the dust shell around IRC+10216 is analysed in detail, employing a self-consistent model for radiatively driven winds around late-type stars that couples the equations of motion and radiative transfer in the dust. The…

Astrophysics · Physics 2015-06-24 Zeljko Ivezic , Moshe Elitzur

We present results of a spectral survey towards a dense molecular condensation and young stellar objects (YSOs) projected on the border of the HII region RCW 120 and discuss emission of 20 molecules which produce the brightest lines. The…

Astrophysics of Galaxies · Physics 2024-03-20 K. V. Plakitina , M. S. Kirsanova , S. V. Kalenskii , S. V. Salii , D. S. Wiebe

High-resolution JWST-MIRI images now allow us to resolve in great detail the multi-scale nature of the emission in nearby star-forming galaxies, from compact star-forming regions to large-scale diffuse emission, giving new insights into…

Using the archive data of the H13CO+ (J=1-0) line emission taken with the Nobeyama 45 m radio telescope with a spatial resolution of about 0.01pc, we have identified 68 dense cores in the central dense region of the rho Ophiuchi main cloud.…

Solar and Stellar Astrophysics · Physics 2015-05-13 Hajime Maruta , Fumitaka Nakamura , Ryoichi Nishi , Norio Ikeda , Yoshimi Kitamura

Photodissociation regions (PDRs), where the (far-)ultraviolet light from hot young stars interact with the gas in surrounding molecular clouds, provide laboratories for understanding the nature and role of feedback by star formation on the…

Astrophysics of Galaxies · Physics 2023-05-31 L. Bonne , B-G Andersson , R. Minchin , A. Soam , J. Yaldaei , K. Kulas , J. Karoly , L. B. G. Knee , S. Kumar , N. Roy

We present the results of a wide-area mapping of the far-infrared continuum emission toward the Orion complex by using a Japanese balloon-borne telescope. The 155-um continuum emission was detected over a region of 1.5 deg^2 around the KL…

Using data obtained by the DIRBE and FIRAS instruments on the COBE spacecraft we present the mean 3.5-1000 um dust spectrum from the high latitude cirrus clouds. These data represent the most comprehensive wavelength coverage of dust…

Astrophysics · Physics 2009-10-28 E. Dwek

Young massive stars regulate the physical conditions, ionization, and fate of their natal molecular cloud. It is important to find tracers that help quantifying the stellar feedback processes that take place at different scales. We present…

We examine new and pre-existing wide-field, continuum-corrected, narrowband images in H$_2$ 1-0 S(1) and Br$\gamma$ of three regions of massive star formation: IC 1396, Cygnus OB2, and Carina. These regions contain a variety of globules,…

Solar and Stellar Astrophysics · Physics 2018-12-26 S. G. Carlsten , P. M. Hartigan

We present deep 1.8 cm (16 GHz) radio continuum imaging of seven young stellar objects in the Taurus molecular cloud. These objects have previously been extensively studied in the sub-mm to NIR range and their SEDs modelled to provide…

We conducted a detailed radiative transfer modeling of the dust emission from the circumstellar disk around HL Tau. The goal of our study is to derive the surface density profile of the inner disk and its structure. In addition to the…

We present JWST/MIRI spectra from the Medium-Resolution Spectrometer of IZw18, a nearby dwarf galaxy with a metallicity of $\sim 3$% Solar. Here, we investigate warm molecular hydrogen, H2, observed in spectra extracted in $\sim 120$ pc…

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