1.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR88 papers
- Space Research InstituteRU63 papers
- Austrian Academy of SciencesAT59 papers
- Goddard Space Flight CenterUS54 papers
- Sorbonne UniversitéFR53 papers
- Imperial College LondonGB49 papers
- Southwest Research InstituteUS48 papers
- KTH Royal Institute of TechnologySE47 papers
- Laboratoire de Physique des PlasmasFR44 papers
- Uppsala UniversitySE43 papers
- École PolytechniqueFR38 papers
- University of California, BerkeleyUS36 papers
23 papers · 1 filter
Circumstellar water vapour in M-type AGB stars: Constraints from H2O(1_10 - 1_01) lines obtained with Odin
M. Maercker, F. L. Schoeier, H. Olofsson +8
Aims: Spectrally resolved circumstellar H2O(1_10 - 1_01) lines have been obtained towards three M-type AGB stars using the Odin satellite. This provides additional strong constrain…
Star formation around the HII region Sh2-235
M. S. Kirsanova, A. M. Sobolev, M. Thomasson +3
We present a picture of star formation around the HII region Sh2-235 (S235) based upon data on the spatial distribution of young stellar clusters and the distribution and kinematic…
Odin observations of the Galactic centre in the 118-GHz band. Upper limit to the O2 abundance
Aa. Sandqvist, B. Larsson, Å. Hjalmarson +6
The Odin satellite has been used to search for the 118.75-GHz line of molecular oxygen (O2)in the Galactic centre. Odin observations were performed towards the Sgr A* circumnuclear…
Energetic neutral atoms as the explanation for the high velocity hydrogen around HD 209458b
M. Holmström, A. Ekenbäck, F. Selsis +3
Absorption in the stellar Lyman- (Ly-) line observed during the transit of the extrasolar planet HD 209458b reveals high velocity atomic hydrogen at great distances from the…
Extragalactic H3O+: Some Consequences
Floris van der Tak, Susanne Aalto, Rowin Meijerink
We discuss some implications of our recent detection of extragalactic H3O+: the location of the gas in M82, the origin of energetic radiation in M82, and the possible feedback effe…
Mars Express/ASPERA-3/NPI and IMAGE/LENA observations of energetic neutral atoms in Earth and Mars orbit
M. Holmstrom, M. R. Collier, S. Barabash +3
The low energy neutral atom imagers on Mars Express and IMAGE have revealed that the neutral atom populations in interplanetary space come from a variety of sources and challenge o…
Sub-millimeter Observations of Giant Molecular Clouds in the Large Magellanic Cloud: Temperature and Density as Determined from J=3-2 and J=1-0 transitions of CO
T. Minamidani, N. Mizuno, Y. Mizuno +26
We have carried out sub-mm 12CO(J=3-2) observations of 6 giant molecular clouds (GMCs) in the Large Magellanic Cloud (LMC) with the ASTE 10m sub-mm telescope at a spatial resolutio…
The abundance of SiS in circumstellar envelopes around AGB stars
F. L. Schoeier, J. Bast, H. Olofsson +1
New SiS multi-transition (sub-)millimetre line observations of a sample of AGB stars with varying photospheric C/O-ratios and mass-loss rates are presented. A combination of low- a…
Luminous HC3N line emission in NGC4418 - buried AGN or nascent starburst?
S. Aalto, R. Monje, S. Martin
IRAM 30m observations reveal that the deeply obscured IR-luminous galaxy NGC4418 has a rich molecular chemistry - including unusually luminous HC3N line emission. We furthermore de…
Utilization of photon orbital angular momentum in the low-frequency radio domain
B. Thidé, H. Then, J. Sjöholm +6
We show numerically that vector antenna arrays can generate radio beams which exhibit spin and orbital angular momentum characteristics similar to those of helical Laguerre-Gauss l…
Upper limits to the water abundance in starburst galaxies
C. D. Wilson, R. S. Booth, A. O. H. Oloffson +11
We have searched for emission from the 557 GHz ortho-water line in the interstellar medium of six nearby starburst galaxies. We used the Odin satellite to observe the 1_10-1_01 tra…
Molecular oxygen in the rho Ophiuchi cloud
B. Larsson, R. Liseau, L. Pagani +56
Molecular oxygen, O2 has been expected historically to be an abundant component of the chemical species in molecular clouds and, as such, an important coolant of the dense interste…
Detection of HCO+ Emission toward the Planetary Nebula K 3-35
D. Tafoya, Y. Gomez, G. Anglada +8
We report the detection, for the first time, of HCO+ (J=1-0) emission as well as marginal CO (J=1-0) emission toward the planetary nebula (PN) K3-35 as a result of a molecular surv…
Chemical differentiation in regions of high-mass star formation I. CS, dust and N2H^+ in southern sources
L. Pirogov, I. Zinchenko, P. Caselli +1
Aims. Our goals are to compare the CS, N2H+ and dust distributions in a representative sample of high-mass star forming dense cores and to determine the physical and chemical prope…
Low-mass star formation in Lynds 1333
M. Kun, S. Nikolic, L. E. B. Johansson +2
Medium-resolution optical spectroscopy of the candidate YSOs associated with the small, nearby molecular cloud Lynds~1333 revealed four previously unknown classical T Tauri stars,…
Mass-loss properties of S-stars on the AGB
S. Ramstedt, F. L. Schoeier, H. Olofsson +1
We have used a detailed non-LTE radiative transfer code to model new APEX CO(J=3-2) data, and existing CO radio line data, on a sample of 40 AGB S-stars. The derived mass-loss-rate…
IRAC and MIPS Observations of the Interacting Galaxies IC 2163 and NGC 2207: Clumpy Emission
Debra Meloy Elmegreen, Bruce G. Elmegreen, Michele Kaufman +4
IC 2163 and NGC 2207 are interacting galaxies that have been well studied at optical and radio wavelengths and simulated in numerical models to reproduce the observed kinematics an…
The distribution of SiO in the circumstellar envelope around IRC+10216
F. L. Schoeier, D. Fong, H. Olofsson +2
New interferometric observations of SiO J=5-4 circumstellar line emission around the carbon star IRC+10216, using the Submillimeter Array, are presented. Complemented by multi-tran…
Heating of the Solar Corona by Dissipative Alfven Solitons
K. Stasiewicz
Solar photospheric convection drives myriads of dissipative Alfven solitons (hereinafter called alfvenons) capable of accelerating electrons and ions to energies of hundreds of keV…
SiO in C-rich circumstellar envelopes of AGB stars: effects of non-LTE chemistry and grain adsorption
F. L. Schoeier, H. Olofsson, A. A. Lundgren
New SiO multi-transition millimetre line observations of a sample of carbon stars, including J=8-7 observations with the APEX telescope, are used to probe the role of non-equilibri…
Prospects for Lunar Satellite Detection of Radio Pulses from Ultrahigh Energy Neutrinos Interacting with the Moon
O. Stål, J. E. S. Bergman, B. Thidé +2
The Moon provides a huge effective detector volume for ultrahigh energy cosmic neutrinos, which generate coherent radio pulses in the lunar surface layer due to the Askaryan effect…
Continuum EVN and MERLIN observations of Ultra Luminous Infrared Galaxies
A. G. Polatidis, J. E. Conway
Radio imaging of ULIR galaxies is ideal to explore the connection between the starburst and the AGN phenomenon since it is unaffected by dust obscuration, and provides the required…
OH in Messier 82
M. K. Argo, A. Pedlar, T. W. B. Muxlow +4
Several new main line OH masers have been detected in the nearby starburst galaxy M82. Eight masers have been detected to 5 sigma, six of which are new detections. Observations cov…