Results 121 to 130 of about 5,591,095 (382)

On the universal outcome of star-formation: Is there a link between stars and brown-dwarfs?

, 2003
(abridged) The recent evidence obtained by Briceno et al. that star-formation in Taurus-Auriga (TA) may be producing significantly fewer brown dwarfs (BDs) per star than the ONC is investigated by setting up a realistic model stellar plus BD population ...
Aarseth, Adams, Bate, Bhattacharyya, Bonnell, Bontemps, Boss, Boss, Bouvier, Bouvier, Bouy, Briceno, Burgasser, Burkert, Carpenter, Close, de la Fuente Marcos, Delgado-Donate, Duchêne, Duchêne, Duquennoy, Elmegreen, Estelle Moraux, Fischer, Gaspard Duchêne, Gizis, Gizis, Gomez, Haisch, Halbwachs, Hartigan, Hartmann, Hartmann, Hartmann, Henry, Hillenbrand, Hillenbrand, Horton, Jerome Bouvier, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Köhler, Lada, Leinert, Luhman, Luhman, Marcy, Martín, Martín, Mathieu, Matzner, Mayor, Mazeh, Mermilliod, Moraux, Motte, Muench, Muench, Myers, Padoan, Pavel Kroupa, Pinfield, Prosser, Reid, Reipurth, Reipurth, Richichi, Sterzik, Sterzik, White, White, White, Woitas, Wuchterl   +82 more
core   +1 more source

Variability of Red Stars [PDF]

Nature, 1896
ACCORDING to a notice, which I found in NATURE'S “Astronomical Column” of November 14, 1895, my theory of the variability of red stars should demand, that the bright lines of hydrogen should be produced there at a low temperature and in a condition never tested by experiments.
openaire   +3 more sources

V.P.Tsessevich - a way in science

Odessa Astronomical Publications, 2017
The biography of Vladimir Platonovich Tsessevichj one of the most prominent variable star researches? is briefly presented. The opening talk at the memorial conference ”Variable Stars” (Odessafl September 1-5?
V. G. Karetnikov
doaj   +1 more source

A NICER Viewing Angle on the Accretion Stream of Vela X-1

The Astrophysical Journal, 2023
Vela X-1 is the archetypal eclipsing high-mass X-ray binary, composed of a neutron star (NS) accreting the B-star wind. It was observed by nearly all X-ray observatories, often multiple times, featuring a rich spectrum of variable emission lines. However,
Roi Rahin, Ehud Behar
doaj   +1 more source

Evolutionary interplay between viruses and R‐loops

FEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi, Zita Képes, Zoltán Szabó, Eszter Csoma, Lóránt Székvölgyi   +4 more
wiley   +1 more source

A Durchmusterung of variable stars [PDF]

Astronomische Nachrichten, 1906
n ...
openaire   +3 more sources

ACTIVE LEARNING TO OVERCOME SAMPLE SELECTION BIAS: APPLICATION TO PHOTOMETRIC VARIABLE STAR CLASSIFICATION [PDF]

, 2011
Despite the great promise of machine-learning algorithms to classify and predict astrophysical parameters for the vast numbers of astrophysical sources and transients observed in large-scale surveys, the peculiarities of the training data often manifest ...
J. Richards, D. Starr, H. Brink, Adam A. Miller, J. Bloom, N. Butler, J. Berian James, J. P. Long, J. Rice   +8 more
semanticscholar   +1 more source

RESEARCH OF THE LONG-TERM BEHAVIOUR OF THE PLEIADES BY USING OF PHOTOGRAPHIC PLATES FROM UKRVO DIGITAL ARCHIVE AND BALDONE OBSERVATORY

Odessa Astronomical Publications, 2016
The Pleiades Star Cluster (M45) is one of the most studied star clusters in the galaxy. At the same time as part of the Pleiades are many long-period variable stars, including flashing that need further study.
L. V. Kazantseva, V. M. Andruk, S. V. Shatokhina, Yu. I. Protsyuk, I. Eglitis, M. Eglite   +5 more
doaj   +1 more source

Disruption of SETD3‐mediated histidine‐73 methylation by the BWCFF‐associated β‐actin G74S mutation

FEBS Letters, EarlyView.
The β‐actin G74S mutation causes altered interaction of actin with SETD3, reducing histidine‐73 methylation efficiency and forming two distinct actin variants. The variable ratio of these variants across cell types and developmental stages contributes to tissue‐specific phenotypical changes. This imbalance may impair actin dynamics and mechanosensitive
Anja Marquardt, Marcus S. Münchhoff, Jacqueline Krohn, Philip M. Palarz, Manuel H. Taft, Johannes N. Greve, Nataliya Di Donato, Falk F. R. Buettner, Dietmar J. Manstein   +8 more
wiley   +1 more source

A new Luminous Variable in M33

, 2009
We present a new luminous star in M33 located in the nuclear region. The star shows strong FeII and [FeII] forest, hydrogen emissions in the spectrum, as well as nebular lines.
A. F. Valeev, Afanasiev, Afanasiev, Barbon, Bonanos, Calzetti, Claret, Corral, Corral, Fabrika, Fabrika, Fabrika, Fabrika, Fabrika, Hubble, Humphreys, Humphreys, Humphreys, Jacoby, Kurtev, Macri, Massey, Massey, Massey, Mochejska, O. Sholukhova, Osterbrock, Reakes, Romano, S. Fabrika, Sholukhova, Sholukhova, Shporer, Smith, Smith, Sterken, Szeifert, Viotti, Viotti, Zharova   +39 more
core   +2 more sources