Results 11 to 20 of about 524,810 (295)
ULTRACOMPACT STARS WITH MULTIPLE NECKS [PDF]
We discuss ultracompact stellar objects which have multiple necks in their optical geometry. There are in fact physically reasonable equations of state for which the number of necks can be arbitrarily large. The proofs of these statements rely on a recent regularized formulation of the field equations for static spherically symmetric models due to ...
Karlovini, Max +2 more
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A CONGRUENCE BETWEEN SYMMETRIC MULTIPLE ZETA-STAR VALUES AND MULTIPLE ZETA-STAR VALUES
The authors studied on some congruence relations among symmetric multiple zeta functions, called symmetric multiple zeta-star values and multiple zeta-star values. They showed a congruence between symmetric multiple zeta-star values and multiple zeta-star values.
Fujita, Kento, Komori, Yasushi
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CCD measurements of double and multiple stars at NAO Rozhen. IV [PDF]
Using the 2 m telescope of the Bulgarian National Astronomical Observatory at Rozhen observations of 30 double or multiple stars were carried out during two half nights on July 20 and 21, 2009.
Cvetković Zorica +2 more
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A Catalog of Nearby Accelerating Star Candidates in Gaia DR3
We describe a new catalog of accelerating star candidates with Gaia G ≤ 17.5 mag and distances d ≤ 100 pc. Designated as the Gaia Nearby Accelerating Star Catalog (GNASC), it contains 29,684 members identified using a supervised machine-learning ...
Marc L. Whiting +3 more
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CCD measurements of double and multiple stars at NAO Rozhen. III [PDF]
Using the 2-m telescope of the Bulgarian National Astronomical Observatory at Rozhen, observations of 55 multiple stars were carried out during one night, December 16/17. 2006.
Cvetković Z. +4 more
doaj +1 more source
Magnetic cycles at different ages of stars [PDF]
We study the different patterns of interannual magnetic variability in stars on or near the lower main sequence, approximately solar-type (G-K dwarf) stars in time series of 36 years from the Mount Wilson Observatory Ca\,{\sc ii}\,H\&K survey.
Baliunas, S. +6 more
core +2 more sources
Multiplicity among chemically peculiar stars [PDF]
We present new orbits for sixteen Ap spectroscopic binaries, four of which might in fact be Am stars, and give their orbital elements. Four of them are SB2 systems: HD 5550, HD 22128, HD 56495 and HD 98088. The twelve other stars are : HD 9996, HD 12288, HD 40711, HD 54908, HD 65339, HD 73709, HD 105680, HD 138426, HD 184471, HD 188854, HD 200405 and ...
Carrier, F. +3 more
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Multiple views of magnetism in cool stars [PDF]
Magnetic fields are regarded as a crucial element for our understanding of stellar physics. They can be studied with a variety of methods which provide complementary - and sometimes contradictory - information about the structure, strength and dynamics ...
Arzoumanian +24 more
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The multiplicity of massive stars in the Orion Nebula cluster as seen with long-baseline interferometry [PDF]
The characterization of multiple stellar systems is an important ingredient for testing current star formation models. Stars are more often found in multiple systems, the more massive they are.
Grellmann, Rebekka +5 more
core +1 more source
Dynamical investigations of the multiple stars
Two multiple stars - the quadruple star - Bootis (ADS 9173) and the triple star T Taury were investigated. The visual double star - Bootiswas studied on the basis of the Pulkovo 26-inch refractor observations 1982-2013.
Kiyaeva Olga V., Zhuchkov Roman Ya.
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