Results 51 to 60 of about 1,293 (185)
Massive Star Formation in the Tarantula Nebula
The Astrophysical Journal, 2023 In this work, we present 299 candidate young stellar objects (YSOs) in 30 Doradus discovered using Spitzer and Herschel point-source catalogs, 276 of which are new.
Omnarayani Nayak +19 more
doaj +1 more source
Interstellar Objects and Exocomets
39 pages, 12 figures.
Fitzsimmons, Alan +3 more
openaire +2 more sources
Detection of CN Gas in Interstellar Object 2I/Borisov [PDF]
The Astrophysical Journal Letters, 2019 Abstract The detection of interstellar objects passing through the solar system offers the promise of constraining the physical and chemical processes involved in planetary formation in other extrasolar systems. While the effect of outgassing by 1I/2017 U1 (’Oumuamua) was dynamically observed, no direct detection of the ejected material ...
Alan Fitzsimmons +10 more
openaire +6 more sources
Non‐innocent solvents in meteorite extractions: Evidence for artifact formation
Meteoritics &Planetary Science, EarlyView.Abstract Solvent extraction is a cornerstone of meteoritic organic and inorganic chemistry, yet the assumption that common solvents act as chemically inert media is becoming increasingly untenable. This study reports that low‐molecular‐weight alcohols, particularly methanol and ethanol, are “non‐innocent” solvents when used to extract soluble sulfur ...
N. Randazzo +6 more
wiley +1 more source
Onset of CN Emission in 3I/ATLAS: Evidence for Strong Carbon-chain Depletion
The Astrophysical Journal LettersInterstellar objects provide a direct window into the environmental conditions around stars other than the Sun. The recent discovery of 3I/ATLAS, a new interstellar comet, offers a unique opportunity to investigate the physical and chemical properties of
Luis E. Salazar Manzano +8 more
doaj +1 more source
Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight
Experimental Physiology, EarlyView.Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley +1 more source
Extreme Negative Polarization of New Interstellar Comet 3I/ATLAS
The Astrophysical Journal LettersWe present the first polarimetric observations of the third discovered interstellar object (ISO), 3I/ATLAS (C/2025 N1, or 3I), obtained preperihelion with FORS2 at the Very Large Telescope, ALFOSC at the Nordic Optical Telescope, and FoReRo2 at the 2 m ...
Zuri Gray +15 more
doaj +1 more source
THE SEARCH FOR SS433 OBJECTS: Hα PHOTOMETRY OF BLUE STARS IN M33
Odessa Astronomical Publications, 2017 549 blue stars with Ho; excess in the galaxy M 33 selected as candidates into unique objects of SS 433 and LBV (luminous blue variables) types are studied.
O. N. Sholukhova
doaj +1 more source
Tuning the Legacy Survey of Space and Time (LSST) Observing Strategy for Solar System Science
The Astrophysical Journal Supplement Series, 2023 The Vera C. Rubin Observatory is expected to start the Legacy Survey of Space and Time (LSST) in early to mid-2025. This multiband wide-field synoptic survey will transform our view of the solar system, with the discovery and monitoring of over five ...
Megan E. Schwamb +29 more
doaj +1 more source
A kinematical age for the interstellar object 1I/’Oumuamua [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 1I/'Oumuamua is the first interstellar object observed passing through the Solar System. Understanding the nature of these objects will provide crucial information about the formation and evolution of planetary systems, and the chemodynamical evolution of the Galaxy as a whole.
Almeida-Fernandes, F. +1 more
openaire +2 more sources