English
Related papers

Related papers: Dynamics and PDR properties in IC1396A

200 papers

We present high-dynamic-range images of circumstellar dust around HR 4796A that were obtained with MIRLIN at the Keck II telescope at lambda = 7.9, 10.3, 12.5 and 24.5 um. We also present a new continuum measurement at 350 um obtained at…

Astrophysics · Physics 2014-10-13 Z. Wahhaj , D. W. Koerner , D. E. Backman , M. W. Werner , E. Serabyn , M. E. Ressler , D. C. Lis

[Abridged] We present maps of the main cooling lines of the neutral atomic gas ([OI] at 63 and 145 micron and [CII] at 158 micron) and in the [OIII] 88 micron line of the starburst galaxy M82, carried out with the PACS spectrometer on board…

We present high sensitivity and high angular resolution images of the high velocity (vLSR>30kms^-1) CO emission in the J=1-0 and J=2-1 lines of the Orion KL region. These results reveal the morphology of the high-velocity CO emission at the…

Astrophysics · Physics 2007-05-23 A. Rodriguez-Franco , J. Martin-Pintado , T. L. Wilson

In this paper we discuss the physical conditions of clumpy nature in the IC 348 molecular cloud. We combine new observations of fully sampled maps in [C I] at 492 GHz and 12CO 4--3, taken with the KOSMA 3 m telescope at about 1' resolution,…

Astrophysics · Physics 2009-11-13 K. Sun , V. Ossenkopf , C. Kramer , B. Mookerjea , M. Röllig , M. Cubick , J. Stutzki

We present maps at high spatial and spectral resolution in emission lines of C2H, c-C3H2, C4H, 12CO and C18O of the edge of the Horsehead nebula obtained with the Plateau de Bure Interferometer (PdBI). The edge of the Horsehead nebula is a…

Astrophysics · Physics 2009-11-10 J. Pety , D. Teyssier , D. Fosse , M. Gerin , E. Roueff , A. Abergel , E. Habart , J. Cernicharo

We present a coarsely-sampled map of the region |l|<=2 degrees, |b|<=0.1 degrees in the 492 GHz 3P1-->3P0 fine structure transition of neutral carbon, observed with the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO). The…

Aims: The chemistry, distribution and mass of the gas in the transitional disk around the 5 Myr old B9.5 V star HD 141569A are constrained. Methods: A quasi 2-dimensional (2D) chemistry code for photon dominated regions (PDR) is used to…

Astrophysics · Physics 2009-11-11 B. Jonkheid , I. Kamp , J. -C. Augereau , E. F. van Dishoeck

We present a 350 micron APEX/SABOCA map of IRAS 05399-0121/SMM 1, which is a dense double-core system in Orion B9. We combined these data with our previous LABOCA 870-micron data. The spatial resolution of the new SABOCA image, ~3400 AU, is…

Astrophysics of Galaxies · Physics 2015-06-15 Oskari Miettinen , Stella S. R. Offner

Aims: We study the emission of molecular gas in 3C236, a FR II radio source at z~0.1, and search for the footprints of AGN feedback. 3C236 shows signs of a reactivation of its AGN triggered by a recent minor merger episode. Observations…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 A. Labiano , S. Garcia-Burillo , F. Combes , A. Usero , R. Soria-Ruiz , G. Tremblay , R. Neri , A. Fuente , R. Morganti , T. Oosterloo

We investigate the physical and chemical processes at work during the formation of a massive protostar based on the observation of water in an outflow from a very young object previously detected in H2 and SiO in the IRAS 17233-3606 region.…

Astrophysics of Galaxies · Physics 2014-05-08 S. Leurini , A. Gusdorf , F. Wyrowski , C. Codella , T. Csengeri , F. van der Tak , H. Beuther , D. R. Flower , C. Comito , P. Schilke

We investigated the infrared (IR) dust emission from PN IC 418, using a detailed model controlled by a previous determination of the stellar properties and the characteristics of the photoionized nebula, keeping as free parameters the dust…

Astrophysics of Galaxies · Physics 2018-09-26 V. Gómez-Llanos , C. Morisset , R. Szczerba , D. A. García-Hernández , P. García-Lario

Recent Herschel and ALMA observations of Photodissociation Regions (PDRs) have revealed the presence of a high thermal pressure (P ~ 10^7-10^8 K cm-3) thin compressed layer at the PDR surface where warm molecular tracer emission (e.g. CH+,…

Astrophysics of Galaxies · Physics 2018-01-08 Emeric Bron , Marcelino Agúndez , Javier R. Goicoechea , José Cernicharo

The properties of molecular gas, the fuel that forms stars, inside the cavity of the circumnuclear disk (CND) are not well constrained. We present results of a velocity-resolved submillimeter scan (~480 to 1250 GHz}) and [CII]158um line…

Astrophysics of Galaxies · Physics 2018-08-22 Javier R. Goicoechea , M. G. Santa-Maria , D. Teyssier , J. Cernicharo , M. Gerin , J. Pety

The nearby system 4C12.50, also known as IRAS 13451+1217 and PKS 1345+12, is a merger of gas-rich galaxies with infrared and radio activity. It has a perturbed interstellar medium (ISM) and a dense configuration of gas and dust around the…

Astrophysics of Galaxies · Physics 2019-09-04 C. M. Fotopoulou , K. M. Dasyra , F. Combes , P. Salomé , M. Papachristou

The structure and kinematics of ionized gas in the star-forming region in the BCD galaxy VIIZw403 (UGC6456) are analyzed using observations with the SCORPIO focal reducer on the 6-m Special Astrophysical Observatory telescope in three…

Astrophysics · Physics 2009-11-11 T. A. Lozinskaya , A. V. Moiseev , V. Yu. Avdeev , O. V. Egorov

Two-dimensional spectra of Supernova 1987A were obtained on 1998 November 14-15 (4282 days after outburst) with the Space Telescope Imaging Spectrograph (STIS) on board the Hubble Space Telescope (HST). The slit sampled portions of the…

We aim to better understand the heating of the gas by observing the prominent gas cooling line [CII] at 158um in the low-metallicity environment of the Local Group spiral galaxy M33 at scales of 280pc. In particular, we aim at describing…

We have obtained maps of the molecular emission within the central five arcminutes (12 pc) of the Galactic center (GC) in selected molecular tracers: SiO(2-1), HNCO(5_{0,5}-4_{0,4}), and the J=1-->0 transition of H^{13}CO+, HN^{13}C, and…

Astrophysics of Galaxies · Physics 2015-05-20 M. A. Amo-Baladrón , J. Martín-Pintado , S. Martín

We present the molecular gas content and ISM conditions of MACSJ0717 Az9, a strong gravitationally lensed $z=4.273$, $M_{*} \simeq 2\times10^9M_{\odot}$ star-forming galaxy with an unusually high ($\sim 80\%$) obscured star formation…

We investigate the presence of COMs in strongly UV-irradiated interstellar molecular gas. We have carried out a complete millimetre line survey using the IRAM30m telescope towards the edge of the Orion Bar photodissociation region (PDR),…

Astrophysics of Galaxies · Physics 2017-07-26 S. Cuadrado , J. R. Goicoechea , J. Cernicharo , A. Fuente , J. Pety , B. Tercero
‹ Prev 1 8 9 10 Next ›