Results 81 to 90 of about 6,276,609 (285)

Traumatic Orbital Floor Fracture Causing Therapeutic Orbital Decompression in Thyroid Eye Disease

open access: yesCase Reports in Ophthalmology, 2022
This is a case of a 67-year-old female with a history of Graves’ disease and associated thyroid eye disease who presented to the emergency room after falling and hitting her head.
Patrick Buoniconti   +2 more
doaj   +1 more source

Spectral variations of the X-ray binary pulsar LMC X-4 during its long period intensity variation and a comparison with Her X-1 [PDF]

open access: yes, 2003
We present spectral variations of the binary X-ray pulsar LMC X-4 using the RXTE/PCA observations at different phases of its 30.5 day long super-orbital period. Only out of eclipse data were used for this study. During the high state of the super-orbital
B. Paul   +27 more
core   +2 more sources

GALEX J194419.33+491257.0: An unusually active SU UMa-type dwarf nova with a very short orbital period in the Kepler data [PDF]

open access: yes, 2014
We studied the background dwarf nova of KIC 11412044 in the Kepler public data and identified it with GALEX J194419.33+491257.0. This object turned out to be a very active SU UMa-type dwarf nova having a mean supercycle of about 150 d and frequent normal
Taichi Kato, Y. Osaki
semanticscholar   +1 more source

Construction of Orbits Asymptotic to a Periodic Orbit

open access: yesThe Astronomical Journal, 1969
Abstract : In the immediate neighborhood of an unstable periodic orbit, the families of orbits asymptotic to it may be expanded in power series of an orbital parameter, the coefficients being successive variations of increasing order from the generating orbit.
Jacques Henrard, André Deprit
openaire   +3 more sources

Orbital Subperiosteal Hematoma in the Newborn Causing Unilateral Proptosis: Ultrasound as First-Line Imaging Modality

open access: yesAmerican Journal of Perinatology Reports, 2017
Proptosis in the neonatal period is relatively infrequent and has diverse underlying etiologies. One of the more common causes appears to be orbital subperiosteal hematoma.
Florencia Angkasa   +4 more
doaj   +1 more source

A long-term X-ray monitoring of the ultraluminous X-ray source NGC 5408 X-1 with Swift reveals the presence of dips but no orbital period [PDF]

open access: yes, 2013
NGC 5408 X-1 is a well-studied ultraluminous X-ray source (ULX) that has been seen to emit in X-rays persistently above the Eddington limit of a stellar-mass black hole for years.
F. Gris'e   +4 more
semanticscholar   +1 more source

Ocean-tide parameters from the simultaneous long-period analysis of the orbits of Starlette and Stella [PDF]

open access: yesAnnales Geophysicae, 1997
The orbits of two geodetic satellites, Starlette and Stella, have been analysed in order to determine ocean-tide parameters. The orbit of Starlette has been determined over a three-year period and Stella over a one-year period.
N. M. Harwood, G. G. Swinerd
doaj   +1 more source

Eclipse Timings of the LMXB XTE J1710-281: Orbital Period Glitches

open access: yes, 2010
We present an X-ray eclipse timing analysis of the transient low mass X-ray binary XTE J1710-281. We report observations of 57 complete X-ray eclipses, made with the proportional counter array detectors aboard the RXTE satellite. Using the eclipse timing
Biswajit Paul   +33 more
core   +1 more source

A cyclical period variation detected in the updated orbital period analysis of TV Columbae [PDF]

open access: yes, 2010
The two CCD photometries of the intermediate polar TV Columbae are made for obtaining the two updated eclipse timings with high precision. There is an interval time \sim 17yr since the last mid-eclipse time observed in 1991.
A. Retter   +21 more
core   +3 more sources

Testing f (R) theories using the first time derivative of the orbital period of the binary pulsars [PDF]

open access: yes, 2013
In this paper we use one of the Post-Keplerian parameters to obtain constraints on f(R)-theories of gravity. Using Minkowskian limit, we compute the prediction of f(R)theories on the first time derivative of the orbital period of a sample of binary stars,
M. Laurentis, I. Martino
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy