C. Buchbender

Molecular globules in the Veil bubble of Orion. IRAM 30m 12CO, 13CO, and C18O 2-1 expanded maps of Orion A

J. R. Goicoechea, C. H. M. Pabst, S. Kabanovic +13

Strong winds and ultraviolet (UV) radiation from O-type stars disrupt and ionize their molecular core birthplaces, sweeping up material into parsec-size shells. Owing to dissociati…

astro-ph.GA2026

Molecular cloud dispersal traced by the ionized carbon 158 micron line

L. Bonne, N. Schneider, S. Dannhauer +14

Feedback from massive stars in the form of radiation and winds impacts the associated host molecular cloud. Feedback can disperse cloud material and lead to the destruction of the…

100 mum and 160 mum emission as resolved star-formation rate estimators in M33 (HERM33ES)

M. Boquien, D. Calzetti, C. Kramer +17

Over the past few years several studies have provided estimates of the SFR (star-formation rate) or the total infrared luminosity from just one infrared band. However these relatio…

astro-ph.CO2012

Cool and warm dust emission from M33 (HerM33es)

E. M. Xilouris, F. S. Tabatabaei, M. Boquien +24

We study the far-infrared emission from the nearby spiral galaxy M33 in order to investigate the dust physical properties such as the temperature and the luminosity density across…

astro-ph.GA2021

SOFIA FEEDBACK survey: exploring the dynamics of the stellar wind driven shell of RCW 49

M. Tiwari, R. Karim, M. W. Pound +13

We unveil the stellar wind driven shell of the luminous massive star-forming region of RCW 49 using SOFIA FEEDBACK observations of the [CII] 158 $I^¼$ m line. The complementary datas…

Dense gas formation in the Musca filament due to the dissipation of a supersonic converging flow

L. Bonne, N. Schneider, S. Bontemps +9

Observations with the Herschel Space Telescope have established that most of the star forming gas is organised in interstellar filaments, a finding that is supported by numerical s…

astro-ph.GA2013

Gas and dust cooling along the major axis of M33 (HerM33es): ISO/LWS CII observations

C. Kramer, J. Abreu-Vicente, S. Garcia-Burillo +12

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 M3…

astro-ph.GA2021

Globules and pillars in Cygnus X III. Herschel and upGREAT/SOFIA far-infrared spectroscopy of the globule IRAS 20319+3958 inCygnus X

N. Schneider, M. Roellig, E. T. Polehampton +11

IRAS 20319+3958 in Cygnus X South is a rare example of a free-floating globule (mass ~240 Msun, length ~1.5 pc) with an internal HII region created by the stellar feedback of embed…

astro-ph.GA2023

The SOFIA FEEDBACK Legacy Survey: Rapid molecular cloud dispersal in RCW 79

L. Bonne, S. Kabanovic, N. Schneider +12

It has long been discussed whether stellar feedback in the form of winds and/or radiation can shred the nascent molecular cloud, thereby controlling the star formation rate. Howeve…

Self-absorption in [CII], $^{12}$ CO, and HI in RCW120. Building up a geometrical and physical model of the region

S. Kabanovic, N. Schneider, V. Ossenkopf-Okada +19

Revealing the 3D dynamics of HII regions and their associated molecular clouds is important for understanding the longstanding problem as to how stellar feedback affects the densit…

astro-ph.IM2021

Observation and calibration strategies for large-scale multi-beam velocity-resolved mapping of the [CII] emission in the Orion molecular cloud

R. Higgins, S. Kabanovic, C. Pabst +15

Context. The [CII] 158micron far-infrared fine-structure line is one of the dominant cooling lines of the star-forming interstellar medium (ISM). Hence [CII] emission originates in…

astro-ph.CO2012

Dust and gas power-spectrum in M33 (HERM33ES)

F. Combes, M. Boquien, C. Kramer +18

Power spectra of de-projected images of late-type galaxies in gas and/or dust emission are very useful diagnostics of the dynamics and stability of their interstellar medium. Previ…

The PDR structure and kinematics around the compact HII regions S235A and S235C with [CII], [13CII], [OI] and HCO+ line profiles

M. S. Kirsanova, V. Ossenkopf-Okada, L. D. Anderson +11

The aim of the present work is to study structure and gas kinematics in the photodissociation regions (PDRs) around the compact HII regions S235A and S235C. We observe the [CII], […

astro-ph.IM2018

The upGREAT dual frequency heterodyne arrays for SOFIA

C. Risacher, R. GÃ¼sten, J. Stutzk +30

We present the performance of the upGREAT heterodyne array receivers on the SOFIA telescope after several years of operations. This instrument is a multi-pixel high resolution (R >…

astro-ph.GA2013

Dense Gas in M33 (HerM33es)

C. Buchbender, C. Kramer, M. Gonzalez-Garcia +13

We aim to better understand the emission of molecular tracers of the diffuse and dense gas in giant molecular clouds and the influence that metallicity, optical extinction, density…

SOFIA FEEDBACK survey: PDR diagnostics of stellar feedback in different regions of RCW 49

M. Tiwari, M. Wolfire, M. W. Pound +13

We quantified the effects of stellar feedback in RCW 49 by determining the physical conditions in different regions using the [CII] 158 $I^¼$ m and [OI] 63 $I^¼$ m observations from SO…

astro-ph.GA2021

The Dense Warm Ionized Medium in the Inner Galaxy

W. D. Langer, J. L. Pineda, P. F. Goldsmith +6

Ionized interstellar gas is an important component of the interstellar medium and its lifecycle. The recent evidence for a widely distributed highly ionized warm interstellar gas w…

astro-ph.CO2013

Spectral Energy Distributions of HII regions in M33 (HerM33es)

M. Relano, S. Verley, I. Perez +16

Within the framework of the Herschel M 33 extended survey HerM33es we study the Spectral Energy Distribution (SED) of a set of HII regions in M 33 as a function of the morphology.…

astro-ph.CO2011

Star formation in M33 (HerM33es)

C. Kramer, M. Boquien, J. Braine +6

Within the key project "Herschel M33 extended survey" (HerM33es), we are studying the physical and chemical processes driving star formation and galactic evolution in the nearby ga…

Properties of compact 250 Î¼m emission and HII regions in M33 (HERM33ES)

S. Verley, M. RelaÃ±o, C. Kramer +12

Within the framework of the HERM33ES Key Project, using the high resolution and sensitivity of the Herschel photometric data, we study the compact emission in the Local Group spira…

PACS and SPIRE photometer maps of M33: First results of the Herschel M33 extended survey (HERM33ES)

C. Kramer, C. Buchbender, E. M. Xilouris +37

Within the framework of the HERM33ES key project, we are studying the star forming interstellar medium in the nearby, metal-poor spiral galaxy M33, exploiting the high resolution a…

astro-ph.IM2016

The upGREAT 1.9 THz multi-pixel high resolution spectrometer for the SOFIA Observatory

C. Risacher, R. Guesten, J. Stutzki +19

We present a new multi-pixel high resolution (R >10^7) spectrometer for the Stratospheric Observatory for Far-Infrared Astronomy (SOFIA). The receiver uses 2 x 7-pixel subarrays in…

FEEDBACK from the NGC7538 HII region

H. Beuther, N. Schneider, R. Simon +10

Context: How do expanding HII regions interact with their environmental cloud? This is one of the central questions driving the SOFIA legacy program FEEDBACK. Here, we present a ca…

Cool gas and dust in M33: Results from the Herschel M33 extended survey (HERM33ES)

J. Braine, P. Gratier, C. Kramer +23

We present an analysis of the first space-based far-IR-submm observations of M 33, which measure the emission from the cool dust and resolve the giant molecular cloud complexes. Wi…

The SOFIA FEEDBACK Legacy Survey: Dynamics and mass ejection in the bipolar HII region RCW 36

L. Bonne, N. Schneider, P. GarcÃa +20

We present [CII] 158 $I^¼$ m and [OI] 63 $I^¼$ m observations of the bipolar HII region RCW 36 in the Vela C molecular cloud, obtained within the SOFIA legacy project FEEDBACK, which i…