Results 121 to 130 of about 6,728 (225)

Eccentric and cool: A high-spectral-resolution view of 51 Eri b with VLT/HiRISE★

open access: yesAstronomy & Astrophysics
Discovered almost ten years ago, the giant planet 51 Eridani b is one of the least separated (≈0.2″) and faintest (J ≈ 19.74 mag) directly imaged exoplanets known to date.
Denis A.   +37 more
doaj   +1 more source

Dynamical masses of young stellar objects with the VLBA: DYNAMO-VLBA

open access: yesAstronomy & Astrophysics
We present results from a multi-epoch Very Long Baseline Array (VLBA) survey conducted as part of the DYNAMO–VLBA project, aimed at measuring the dynamical masses of young stellar systems in the Orion complex.
Dzib Sergio A.   +11 more
doaj   +1 more source

Origin and Evolution of Enceladus's Tidal Dissipation. [PDF]

open access: yesSpace Sci Rev, 2023
Nimmo F, Neveu M, Howett C.
europepmc   +1 more source

Right round: Onset and long-term evolution of rotation in star clusters

open access: yesAstronomy & Astrophysics
We present the results of a detailed kinematic analysis of a significant fraction of the known population of Galactic star clusters aimed at constraining the physical mechanisms driving the onset and evolution of cluster rotation.
Dalessandro E.   +6 more
doaj   +1 more source

Outline of Infrared Space Astrometry missions:JASMINE

open access: yes, 2017
Japanese group is promoting infrared space astrometry missions, JASMINE project series, in international collaboration with Gaia DPAC team. In this paper, the outline of Nano-JASMINE and Small-JASMINE missions is shown.
null null, N. Gouda
core   +1 more source

Precision Astrometry with SIM PlanetQuest: Science and Mission Update

open access: yes, 2006
This viewgraph presentation gives a science and mission update of precision Astrometry with the Space Interferometry Mission (SIM) PlanetQuest. The topics include: 1) SIM PlanetQuest - the World s First Long- Baseline Optical Interferometer in Space; 2 ...
Unwin, Stephen, Shao, Michael
core  

24. Photographic Astrometry (Astrometrie Photographique) [PDF]

open access: yesTransactions of the International Astronomical Union, 1996
openaire   +1 more source

Very long baseline interferometry astrometry of PSR B1257+12, a pulsar with a planetary system

open access: yes, 2013
An astrometry project on PSR B1257+12, a millisecond pulsar with a planetary system, has been carried out with the Very Long Baseline Array and the European Very Long Baseline Interferometry (VLBI) Network at the central frequencies of 1465 and 1540 MHz,
Alef, Walter   +5 more
core  

Astrometry for astrophysics: methods, models, and applications

open access: yes, 2012
Unifying work by a broad range of experts in the field, this is the most complete textbook on observational ...
van Altena, William F
core  

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