Results 111 to 120 of about 722,598 (307)
What is driving the evolution of the far-infrared radio correlation? [PDF]
Zbornik Matice Srpske za Prirodne Nauke, 2019 Far infrared-radio correlation represents a linear relationship between far-infrared (FIR) and radio emission in star-forming galaxies. Previous observations have confirmed that this correlation is maintained over a large range of redshift and ...
Pavlović Marina S. +1 more
doaj +1 more source
Revisiting Variable Stars Near Globular Clusters South of −29° Declination
Astronomische Nachrichten, Volume 346, Issue 2, February 2025.ABSTRACT We review an often‐cited but seldom‐accessed catalogue by Fourcade and Laborde (1966) of 785 variable stars near 47 southern Galactic globular clusters, and recover the locations of 85 stars that were not incorporated into subsequent variable star catalogues and hence have become “lost” to the literature.
Andrew C. Layden +7 more
wiley +1 more source
HST/ACS observations of the old and metal-poor sagittarius dwarf irregular galaxy [PDF]
, 2005 We have obtained deep color−magnitude diagrams (CMDs) of the Sagittarius dwarf irregular galaxy with the Advanced Camera for Surveys (ACS) on board the Hubble Space Telescope. The new diagrams show for the first time the star formation history of SagDIG.
Y. Momany +9 more
semanticscholar +1 more source
The Astrophysical Journal, 2023 We conducted an optical monitoring survey of the Sagittarius dwarf irregular galaxy (SagDIG) during the period of 2016 June–2017 October, using the 2.5 m Isaac Newton Telescopeat La Palama.
Tahere Parto +9 more
doaj +1 more source
Faint Galaxy Number Counts in the Durham and SDSS Catalogues
Galaxies, 2023 Galaxy number counts in the K-, H-, I-, R-, B- and U-bands from the Durham Extragalactic Astronomy and Cosmology catalogue could be well-fitted over their whole range using luminosity function (LF) parameters derived from the SDSS at the bright region ...
John H. Marr
doaj +1 more source
A survey of nearby galaxies for CO [PDF]
, 1980 We have made a survey of the nuclei of 81 galaxies for the 1-) line of CO. 38 of the galaxies are from a complete sample with recession velocity ≦400 km s-1 and 21-cm line strength ≧10-27 Wm-2, and the remainder represent nearby galaxies with weaker or ...
Phillips, T. G. +2 more
core
The Molecule-Rich Tail of the Peculiar Galaxy NGC 2782 (Arp 215) [PDF]
, 1998 We present the first detection of a large quantity of molecular gas in the extended tail of an interacting galaxy. Using the NRAO 12m telescope, we have detected CO (1 - 0) at five locations in the eastern tail of the peculiar starburst galaxy NGC 2782 ...
Arimoto N. +24 more
core +3 more sources
GeoHealth, Volume 9, Issue 2, February 2025.Abstract The challenges of human space exploration produce some of humanity's greatest technological and scientific advances, not excluding innovations in medicine. The microgravity environment causes a host of physiological changes, and exposure to dust on the Moon caused considerable pulmonary distress to astronauts during the Apollo missions. As the
Justin L. Wang +7 more
wiley +1 more source
The Spatial Homogeneity of Nebular and Stellar Oxygen Abundances in the Local Group Dwarf Irregular Galaxy NGC 6822 [PDF]
, 2005 To test the existence of a possible radial gradient in oxygen abundances within the Local Group dwarf irregular galaxy NGC 6822, we have obtained optical spectra of 19 nebulae with the EFOSC2 spectrograph on the 3.6 m telescope at ESO La Silla.
Henry Lee, E. Skillman, K. Venn
semanticscholar +1 more source
The Metallicity and Distance of Leo A from Blue Supergiants
The Astrophysical Journal, 2023 We have obtained high-quality spectra of blue supergiant candidates in the dwarf irregular galaxy Leo A with the Low Resolution Imaging Spectrometer at the Keck I telescope.
Miguel A. Urbaneja +2 more
doaj +1 more source