Results 91 to 100 of about 877,168 (238)

Overlapping Open Clusters NGC 1750 and NGC 1758 behind the Taurus Dark Clouds. II. CCD Photometry in the Vilnius System

Open Astronomy, 2003
Seven-color photometry in the Vilnius system has been obtained for 420 stars down to V = 16 mag in the area containing the overlapping open clusters NGC 1750 and NGC 1758 in Taurus.
Straižys V., Kazlauskas A., Černiauskas A., Boyle R. P., Vrba F. J., Philip A. G. Davis, Laugalys V., Černis K., Smriglio F.   +8 more
doaj   +1 more source

A translated utopia: Embodied communication, media ideologies, and Star Trek's Universal Translator

Journal of Linguistic Anthropology, Volume 35, Issue 3, December 2025.
Abstract This paper uses Star Trek's “Universal Translator” (UT) as a point of departure for considering the imagined future of mediated linguistic interactions and of contact across difference. Although such a technology does not exist, taking its potentialities seriously as folkloric devices allows for an exploration of ideologies relating to ...
Sarah Shulist
wiley   +1 more source

Gas stripping by radiation drag from an interstellar cloud

, 2004
We perform two-dimensional hydrodynamic simulation on the gas stripping by radiation drag from an interstellar cloud moving in uniform radiation fields.
Ferrarese, Ferrarese, Fortner, Fukue, Fukue, Fukue, Gebhardt, Gebhardt, Ho, Jun'ichi Sato, Kawakatu, Kawakatu, Kawakatu, Keisuke Sawada, Kormendy, Kormendy, Lamb, Laor, Loeb, Magorrian, Masayuki Umemura, McLure, McLure, Merrifield, Merritt, Merritt, Meyer, Mihalas, Miller, Mineshige, Miyoshi, Mori, Nakahashi, Nelson, Ohsuga, Poynting, Richstone, Robertson, Salucci, Sarzi, Shingo Matsuyama, Tsuribe, Tsuribe, Umemura, Umemura, Umemura, Umemura, Umemura, Wandel, Wandel   +49 more
core   +1 more source

Nearby Supernova and Cloud Crossing Effects on the Orbits of Small Bodies in the Solar System

The Astrophysical Journal Letters
Supernova (SN) blasts envelop many surrounding stellar systems, transferring kinetic energy to small bodies in the systems. Geologic evidence from ^60 Fe points to recent nearby SN activity within the past several Myr.
Leeanne Smith, Jesse A. Miller, Brian D. Fields   +2 more
doaj   +1 more source

JWST Imaging of the Closest Globular Clusters—VI. The Lowest‐Mass Objects in M 4 and the Galactic Bulge

Astronomische Nachrichten, Volume 346, Issue 9, November 2025.
ABSTRACT We present James Webb Space Telescope observations of M 4—the closest globular cluster—that probe the lower Main Sequence down to the hydrogen‐burning limit. The unveiled stellar sequence reaches much fainter luminosities than previously possible, revealing a few extremely red objects that are consistent with brown dwarfs as cool as Teff∼1000K$
L. R. Bedin, R. Gerasimov, A. Calamida, M. Libralato, M. Scalco, D. Nardiello, M. Griggio, D. Apai, J. Anderson, A. Bellini, A. Burgasser   +10 more
wiley   +1 more source

Theoretical Calculations for the Acidity of Cyanopolyynes HC2n+1N (n = 0–5) in Gas and Aqueous Phases Using Ab initio Methods

ARO-The Scientific Journal of Koya University, 2019
Cyanopolyynes have been found in the interstellar medium, cold dust cloud Taurus Molecular Cloud-1, and the Titan’s atmosphere. Theoretical calculations are carried out to predict gas and aqueous phase acidities of a series of cyanopolyynes acids.
Hassan H. Abdallah
doaj   +1 more source

Observations of the Local Interstellar Cloud [PDF]

International Astronomical Union Colloquium, 1997
AbstractConstraints on the ambient (circumsolar) interstellar medium can be derived from observations of interstellar neutrals or their derivatives in the heliosphere. New results have been recently obtained which, when combined with optical and UV observations of the nearby stars (HST-GHRS, EUVE), remove long-standing contradictions and allow us to ...
openaire   +1 more source

Analysis of ultraviolet spectrophotometric data from Copernicus [PDF]

Ultraviolet spectral data from the OAO 3 satellite are being used to study interstellar absorption lines and stellar and circumstellar lines in hot stars.
Snow, T. P., Jr.
core   +1 more source

The Effect of an Inert Solid Reservoir on Molecular Abundances in Dense Interstellar Clouds

Open Astronomy, 2012
The question, what is the role of freeze-out of chemical species in determining the molecular abundances in the interstellar gas is a matter of debate.
Kalvāns Juris, Shmeld Ivar
doaj   +1 more source

The Spectral Energy Distribution of Self-gravitating Interstellar Clouds I. Spheres

, 2007
We derive the spectral energy distribution (SED) of dusty, isothermal, self gravitating, stable and spherical clouds externally heated by the ambient interstellar radiation field.
Bernard J. P., Bernard J. P., Bonnor W. B., Boulanger F., Chlewicki G., Ebert R., Gail H.-P., Jörg Fischera, Laureijs R. J., Lehtinen K., Lehtinen K., Lehtinen K., Lemke D., Mathis J. S., Mattila K., Michael A. Dopita, Ossenkopf V., Padoan P.   +17 more
core   +1 more source