Results 191 to 200 of about 4,968 (216)
Extended hot dust emission around the earliest massive quiescent galaxy
Ji Z +16 more
europepmc +1 more source
Galaxy Tomography with the Gravitational Wave Background from Supermassive Black Hole Binaries
Chen Y.
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
EAS Publications Series, 2002
The successful hipparcos mission has brought, and proved the validity of, a new observational concept to achieve absolute measurements of star positions in space. Only five years after the final publication of the results there are now four astrometry missions scheduled for the next decade, three of which appearing as the natural ...
S. Roeser, F. Mignard
openaire +2 more sources
The successful hipparcos mission has brought, and proved the validity of, a new observational concept to achieve absolute measurements of star positions in space. Only five years after the final publication of the results there are now four astrometry missions scheduled for the next decade, three of which appearing as the natural ...
S. Roeser, F. Mignard
openaire +2 more sources
Astronomy Reports, 2018
It has recently become clear that the potential role of astrometry in cosmological studies has been underestimated. Some areas of cosmology that should be investigated using astrometrical methods are discussed. This paper is based on a presentation made at the conference “Modern Astrometry 2017,” dedicated to the memory of K.V.
T. A. Kalinina +3 more
openaire +2 more sources
It has recently become clear that the potential role of astrometry in cosmological studies has been underestimated. Some areas of cosmology that should be investigated using astrometrical methods are discussed. This paper is based on a presentation made at the conference “Modern Astrometry 2017,” dedicated to the memory of K.V.
T. A. Kalinina +3 more
openaire +2 more sources
Photographic Astrometry (Astrometrie Photographique)
1991Despite some much publicized disappointments, the highlights of Astrometry during the past three year period are dominated by the successful launches of the ESA Hipparcos astrometric satellite and the NASA Hubble Space Telescope. For the past 15 to 20 years the research activities of many Commission members have been monopolized by the design and ...
openaire +2 more sources
Astrometry and Cosmology [PDF]
, 1974 For reference purposes, the earth’s surface at sea level may be represented by revolving an ellipse of eccentricity, e, and major axis, a e, about the polar axis. The flattening factor, f, or ellipticity, is related to the eccentricity, e,by the equation $${e^2} = 2f - {f^2}$$ (5-1) , The flattening factor is alternatively called the ...
openaire +1 more source