Results 71 to 80 of about 2,871 (139)

Field and intensity correlations: the Siegert relation from stars to quantum emitters. [PDF]

open access: yesEur Phys J D At Mol Opt Phys, 2022
Lassègues P   +11 more
europepmc   +1 more source

Stellar mass loss and the Intra-Cluster Medium in Galactic globular clusters: a deep radio survey for HI and OH

open access: yes, 2005
We present the results of a survey, the deepest to date, for HI emission at 21 cm and OH emission at 18 cm (lines at 1612, 1665, 1667 and 1720 MHz) in the direction towards the Galactic globular clusters M 15, M 2, NGC 6934, NGC 7006 and Pal 13.
A. Evans   +57 more
core   +1 more source

Cumulene carbenes in TMC-1: Astronomical discovery of <i>l</i>-H<sub>2</sub>C<sub>5</sub> <sup>★</sup>. [PDF]

open access: yesAstron Astrophys, 2021
Cabezas C   +6 more
europepmc   +1 more source

Circumbinary Molecular Rings Around Young Stars in Orion

open access: yes, 2007
We present high angular resolution 1.3 mm continuum, methyl cyanide molecular line, and 7 mm continuum observations made with the Submillimeter Array and the Very Large Array, toward the most highly obscured and southern part of the massive star forming ...
L. A. Zapata   +5 more
core   +1 more source

Studies of variability of circumstellar H2O masers [PDF]

open access: yesSymposium - International Astronomical Union, 1987
From March 1980 to December 1983, the author took part in regular observations of variability of maser radio emission in the H2O line at 22 GHz. The observations were carried out at the 22-meter radio telescope of the P. Lebedev Physical Institute (USSR Academy of Sciences) in Pushchino (Moscow Region).
openaire   +1 more source

VLBI Observations of Water Masers in the Circumstellar Envelope of IRC+60169

open access: yes, 2002
Water masers around an AGB star, IRC+60169, were observed at four epochs using the Japanese VLBI networks. The distribution of the maser features is limited in a thick-shell region, which has inner and outer expansion velocities of 7 km/s and 14 km/s at ...
Hasegawa, W.   +7 more
core   +1 more source

Radiative transfer in circumstellar 1612 MHz OH masers

open access: yesThe Astrophysical Journal, 1986
A detailed investigation of radiative transfer in the 1612 MHz OH maser in the expanding envelopes around evolved stars is made in the context of the standard model in which the mass outflow is windlike. The most sensitive diagnostic of the models is the maser emission at the velocity of the star for which VLA and MERLIN data exist.
C. Alcock, R. R. Ross
openaire   +1 more source

A new mid-infrared map of the BN/KL region using the Keck telescope

open access: yes, 2004
We present a new mid-infrared (12.5micron) map of the BN/KL high-mass star-forming complex in Orion using the LWS instrument at Keck I. Despite poor weather we achieved nearly diffraction-limited images (FWHM = 0.38'') over a roughly 25'' X 25'' region ...
Brown P.   +5 more
core   +1 more source

Circumstellar masers in the Magellanic Clouds

open access: yes, 2012
Published electronically in Proceedings "Science with Parkes @ 50 Years Young", 2012, Ed. Robert Braun.
openaire   +2 more sources

JVN observations of H2O masers around the evolved star IRAS 22480+6002

open access: yes, 2007
We report on the H2O maser distributions around IRAS 22480+6002 (=IRC+60370) observed with the Japanese VLBI Network (JVN) at three epochs spanning 2 months. This object was identified as a K-type supergiant in 1970s, which was unusual as a stellar maser
Deguchi, S.   +3 more
core   +1 more source

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