Results 31 to 40 of about 406 (178)
Discovery of 20 UV-emitting SNRs in M31 with UVIT
The Astronomical Journal, 2023 We present the first catalog of supernova remnants (SNRs) in M31 that exhibit diffuse ultraviolet (UV) emission. UV images of M31 were obtained by the Ultraviolet Imaging Telescope (UVIT) on the AstroSat satellite, and the list of SNRs was obtained from ...
Denis Leahy +2 more
doaj +1 more source
MOLECULAR GAS VELOCITY DISPERSIONS IN THE ANDROMEDA GALAXY [PDF]
The Astronomical Journal, 2016 ABSTRACT In order to characterize the distribution of molecular gas in spiral galaxies, we study the line profiles of CO (1 – 0) emission in Andromeda, our nearest massive spiral galaxy. We compare observations performed with the IRAM 30 m single-dish telescope and with the CARMA interferometer at a common resolution of 23 arcsec ≈ 85 pc
Caldú-Primo, A., Schruba, A.
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The Andromeda Dwarf Spheroidal Galaxies [PDF]
Symposium - International Astronomical Union, 1999 Our current knowledge of M31's dwarf spheroidal companions is reviewed. Two topics of recent interest constitute the bulk of this review. First, color-magnitude diagrams reaching below the horizontal branch have been constructed for two M31 dwarf spheroidals, based on images from HST/WFPC2. The horizontal branches are predominantly red in both galaxies,
Armandroff, Taft E., Da Costa, Gary S.
openaire +2 more sources
Xanthomonas euvesicatoria Associated With Outbreaks of Bacterial Blight of Onion in Central Brazil
Plant Pathology, Volume 75, Issue 4, July‐August 2026.An investigation into bacterial blight (Xanthomonas euvesicatoria) outbreaks in Brazilian onions highlights the critical role of weeds and leftover soybeans as pathogen reservoirs. Effective disease control requires managing these alternative hosts. ABSTRACT Since 2018, outbreaks of typical bacterial blight caused by Xanthomonas have been observed in ...
Luciellen da Costa Ferreira +5 more
wiley +1 more source
European Journal of Philosophy, Volume 34, Issue 2, Page 423-440, June 2026.ABSTRACT Making sense of the world often requires one to come up with new ideas, including ideas one had previously been unable to think of. How and when should this be done? I propose and defend a norm of rationality linking wondering, belief, and abilities to conceive: one must not both wonder a question and reject all answers to it that one can ...
Michael Deigan
wiley +1 more source
Kinematics and Metallicity of the Dwarf Spheroidal Galaxy Andromeda XVIII
The Astrophysical JournalAndromeda XVIII is an isolated dwarf galaxy 579 kpc away from the nearest large galaxy, M31. It is a candidate “backsplash galaxy” that might have been affected by a close passage to M31.
Kateryna A. Kvasova +2 more
doaj +1 more source
Scientific photography and astronomy: Technology applied to understanding the universe
Mètode Science Studies Journal: Annual ReviewIn 1925, Edwin Hubble took the first step towards increasing the size of the known universe by several orders of magnitude using the precarious photographic methods available at the time: glass plates and photosensitive emulsions.
Fernando Abalos Vazquez, Javier Ábalos
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A comparison of the Andromeda and Milky Way galaxies [PDF]
Symposium - International Astronomical Union, 1985 A comparison of some of the basic properties of M31 and the Milky Way indicates that in almost every respect M31 is larger than the Galaxy. It is more luminous, redder, more massive, and of earlier Hubble type. A detailed comparison of the spiral structure, based on optical tracers, for comparable areas in the outer parts of each galaxy shows ...
openaire +1 more source
Global Change Biology, Volume 32, Issue 6, June 2026.Rewetting drained boreal peatland forests is increasingly promoted as a climate mitigation strategy, yet its effects on carbon (C) and greenhouse gas (GHG) balances remain uncertain. This study quantified CO2 and CH4 fluxes over 2 years before and after rewetting in a low‐productive peatland forest, with and without tree harvest.
Järvi Järveoja +6 more
wiley +1 more source
Skepticism and Ontological Parsimony
Pacific Philosophical Quarterly, Volume 107, Issue 2, Page 86-98, June 2026.ABSTRACT External world skepticism is often thought to entail that we should suspend judgment about the existence of the external world. I challenge this orthodoxy by arguing that, when combined with a plausible principle of ontological parsimony, the skeptical challenge intensifies into an argument for outright disbelief in the external world.
James H. McIntyre
wiley +1 more source