Results 101 to 110 of about 6,276,609 (285)
CSS100603:112253−111037: a helium-rich dwarf nova with a 65 min orbital period [PDF]
, 2012 We present time-resolved optical spectroscopy of the dwarf nova CSS100603:112253−111037. Its optical spectrum is rich in helium, with broad, double-peaked emission lines produced in an accretion disc. We measure a line flux ratio He i λ5876/Hα = 1.49 ± 0.
E. Breedt +5 more
semanticscholar +1 more source
Amplitude dependent orbital period in alternating gradient accelerators
, 2016 Orbital period in a ring accelerator and time of flight in a linear accelerator depend on the amplitude of betatron oscillations. The variation is negligible in ordinary particle accelerators with relatively small beam emittance.
Berg, J. S. +7 more
core +1 more source
Post-common envelope binaries from SDSS - XVI. Long orbital period systems and the energy budget of CE evolution [PDF]
, 2012 Virtually all close compact binary stars are formed through common-envelope (CE) evolution. It is generally accepted that during this crucial evolutionary phase a fraction of the orbital energy is used to expel the envelope.
A. Rebassa-Mansergas +12 more
semanticscholar +1 more source
Orbital control on late Miocene climate and the North African monsoon: insight from an ensemble of sub-precessional simulations [PDF]
Climate of the Past, 2015 Orbital forcing is a key climate driver over multi-millennial timescales. In particular, monsoon systems are thought to be driven by orbital cyclicity, especially by precession.
A. Marzocchi +5 more
doaj +1 more source
, 2009 We report on a timing analysis performed on a 62-ks long XMM-Newton observation of the accreting millisecond pulsar SAX J1808.4-3658 during the latest X-ray outburst that started on September 21, 2008.
A. D'Aì +24 more
core +3 more sources
The Astronomical JournalWe report the first measurement of the orbital period of a long-period colliding-wind-binary system Wolf–Rayet (WR) 146, derived by tracing the rotational morphology of its wind-colliding region (WCR) and the relative orientation of the two binary ...
Shiming Wen +10 more
doaj +1 more source
Orbital metastases from breast cancer: three case reports
Сибирский онкологический журналPurpose: to describe rare cases of orbital metastases from breast cancer.Material and Methods. Three cases of Luminal A(1) and B(2) breast cancer with orbital metastases were identified and studied during the period from 01.01.2018 to 01.05.2024 ...
L. A. Danilova +6 more
doaj +1 more source
A 2.15 hr ORBITAL PERIOD FOR THE LOW-MASS X-RAY BINARY XB 1832-330 IN THE GLOBULAR CLUSTER NGC 6652 [PDF]
, 2012 We present a candidate orbital period for the low-mass X-ray binary (LMXB) XB 1832-330 in the globular cluster NGC 6652 using a 6.5 hr Gemini South observation of the optical counterpart of the system.
M. Engel +4 more
semanticscholar +1 more source
Analytical description of physical librations of Saturnian coorbital satellites Janus and Epimetheus
, 2010 Janus and Epimetheus are famously known for their distinctive horseshoe-shaped orbits resulting from a 1:1 orbital resonance. Every four years these two satellites swap their orbits by a few tens of kilometers as a result of their close encounter ...
Celletti +23 more
core +3 more sources
Periodic orbits from nonperiodic orbits on an interval
Applied Mathematics Letters, 1997 AbstractThis paper demonstrates that any continuous real-valued function which has an orbit with infinitely many limit points must necessarily have periodic cycles of arbitrarily large prime period. We present an example of a function with an orbit whose limit points are exactly Z+.
Mario Martelli, Annalisa Crannell
openaire +2 more sources