Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of GothenburgSE951 papers
- Centre National de la Recherche ScientifiqueFR805 papers
- Leiden UniversityNL590 papers
- Max Planck Institute for Radio AstronomyDE405 papers
- European Southern ObservatoryCL356 papers
- Center for Astrophysics Harvard & SmithsonianUS313 papers
- Leiden Observatory304 papers
- California Institute of TechnologyUS296 papers
- National Astronomical Observatory of JapanJP280 papers
- Observatoire de ParisFR268 papers
- Stockholm UniversitySE262 papers
- Centro de AstrobiologíaES252 papers
19 papers · 2 filters
The thermal state of molecular clouds in the Galactic Center: evidence for non-photon-driven heating
Y. Ao, C. Henkel, K. M. Menten +6
We used the Atacama Pathfinder Experiment (APEX) 12 m telescope to observe the J_KaKc=3_03-2_02, 3_22-2_21, and 3_21-2_20 transitions of para-H_2CO at 218 GHz simultaneously to det…
Preliminary results on SiO v=3 J=1-0 maser emission from AGB stars
J. -F. Desmurs, V. Bujarrabal, M. Lindqvist +3
We present the results of SiO maser observations at 43GHz toward two AGB stars using the VLBA. Our preliminary results on the relative positions of the different J=1-0 SiO masers (…
M87 at metre wavelengths: the LOFAR picture
F. de Gasperin, E. Orru', M. Murgia +92
M87 is a giant elliptical galaxy located in the centre of the Virgo cluster, which harbours a supermassive black hole of mass 6.4x10^9 M_sun, whose activity is responsible for the…
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…
Detection of Interstellar C_2 and C_3 in the Small Magellanic Cloud
Daniel E. Welty, J. Christopher Howk, Nicolas Lehner +1
We report the detection of absorption from interstellar C_2 and C_3 toward the moderately reddened star Sk 143, located in the near 'wing' region of the SMC, in optical spectra obt…
H2O line mapping at high spatial and spectral resolution - Herschel observations of the VLA1623 outflow
P. Bjerkeli, R. Liseau, B. Larsson +12
Apart from being an important coolant, H2O is known to be a tracer of high-velocity molecular gas. Recent models predict relatively high abundances behind interstellar shockwaves.…
Nitrogen hydrides in interstellar gas II. Analysis of Herschel/HIFI observations towards W49N and G10.6-0.4 (W31C)
C. M. Persson, M. De Luca, B. Mookerjea +14
We have used the Herschel-HIFI instrument to observe interstellar nitrogen hydrides along the sight-lines towards W49N and G10.6-0.4 in order to elucidate the production pathways l…
Chemical Analysis of a Diffuse Cloud along a Line of Sight Toward W51: Molecular Fraction and Cosmic-Ray Ionization Rate
Nick Indriolo, D. A. Neufeld, M. Gerin +4
Absorption lines from the molecules OH+, H2O+, and H3+ have been observed in a diffuse molecular cloud along a line of sight near W51 IRS2. We present the first chemical analysis t…
Herschel/HIFI observations of red supergiants and yellow hypergiants: I. Molecular inventory
D. Teyssier, G. Quintana-Lacaci, A. P. Marston +17
Red supergiant stars (RSGs) and yellow hypergiant stars (YHGs) are believed to be the high-mass counterparts of stars in the AGB and early post-AGB phases. We study the mass-loss i…
The chemistry of C3 & Carbon Chain Molecules in DR21(OH)
B. Mookerjea, G. Hassel, M. Gerin +14
(Abridged) We have observed velocity resolved spectra of four ro-vibrational far-infrared transitions of C3 between the vibrational ground state and the low-energy nu2 bending mode…
Winds of change - a molecular outflow in NGC 1377? The anatomy of an extreme FIR-excess galaxy
S. Aalto, S. Muller, K. Sakamoto +3
We use high (0."65 x 0."52,(65x52pc)) resolution SubMillimeter Array (SMA) observations to image the CO and 13CO 2-1 line emission of the extreme FIR-excess galaxy NGC 1377. We fin…
Detection of the hydroperoxyl radical HO2 toward ρOph A: Additional constraints on the water chemical network
B. Parise, P. Bergman, F. Du
Context: Hydrogen peroxide (HOOH) was recently detected toward ρOph A. Subsequent astrochemical modeling that included reactions in the gas phase and on the surface of dust grains…
Herschel Search for O2 Toward the Orion Bar
Gary J. Melnick, Volker Tolls, Paul F. Goldsmith +15
We report the results of a search for molecular oxygen (O2) toward the Orion Bar, a prominent photodissociation region at the southern edge of the HII region created by the luminou…
No evidence for a central IMBH in M15
F. Kirsten, W. H. T. Vlemmings
Intermediate mass black holes (IMBHs) with expected masses M_BH ~ 10^4 M_sun are thought to bridge the gap between stellar mass black holes (M_BH ~ 3 - 100 M_sun) and supermassive…
Mapping the Linearly Polarized Spectral Line Emission around the Evolved Star IRC+10216
J. M. Girart, N. Patel, W. Vlemmings +1
We present spectro-polarimetric observations of several molecular lines obtained with the Submillimeter Array (SMA) toward the carbon rich AGB star IRC+10216. We have detected and…
The magnetic field of IRAS 16293-2422 as traced by shock-induced H2O masers
Felipe O. Alves, Wouter H. T. Vlemmings, Josep M. Girart +1
Shock-induced H2O masers are important magnetic field tracers at very high density gas. Water masers are found in both high- and low-mass star-forming regions, acting as a powerful…
Multi-line detection of O2 toward rho Oph A
R. Liseau, P. F. Goldsmith, B. Larsson +36
Models of pure gas-phase chemistry in well-shielded regions of molecular clouds predict relatively high levels of molecular oxygen, O2, and water, H2O. Contrary to expectation, the…
Comparative study of CH+ and SH+ absorption lines observed towards distant star-forming regions
Benjamin Godard, E. Falgarone, M. Gerin +8
Aims. The HIFI instrument onboard Herschel has allowed high spectral resolution and sensitive observations of ground-state transi- tions of three molecular ions: the methylidyne ca…
Herschel observations of interstellar chloronium
David A. Neufeld, Evelyne Roueff, Ronald L. Snell +21
Using the Herschel Space Observatory's Heterodyne Instrument for the Far-Infrared (HIFI), we have observed para-chloronium (H2Cl+) toward six sources in the Galaxy. We detected int…