Results 61 to 70 of about 240,676 (167)
The column density towards LMC X-1
, 2009 We measure the neutral absorption towards the black hole X-ray binary system LMC X-1 from six archival soft X-ray spectra obtained with the gratings and/or CCD detectors on Chandra, XMM-Newton, and Swift.
Barragan, Laura +4 more
core +1 more source
Planck pre-launch status: calibration of the Low Frequency Instrument flight model radiometers [PDF]
, 2010 The Low Frequency Instrument (LFI) on-board the ESA Planck satellite carries eleven radiometer subsystems, called Radiometer Chain Assemblies (RCAs), each composed of a pair of pseudo-correlation receivers.
Leahy, John +74 more
core +3 more sources
Inferring Exoplanet Parameters from Transit Timing Variations Using LSTM Networks
The Planetary Science JournalTransit timing variation (TTV) analysis provides a valuable complement to traditional transit and radial-velocity techniques, particularly in compact, near-resonant planetary systems where dynamical interactions amplify timing signals and refine mass and
Muhammad Isnaenda Ikhsan +2 more
doaj +1 more source
Photometric Study of Contact Binary AW UMa [PDF]
Journal of Astronomy and Space Sciences, 1995 BVRI observations of AW UMa were made from March to April during 13 nights in 1994 using the 35cm schmidt-Cassegrain telescope of Department of Astronomy and Space Science, Chungbuk National University.
Jo Ryeong Yim, Jang Hae Jeong
doaj
Determining the Rotation Periods of an Inactive LEO Satellite and the First Korean Space Debris on GEO, KOREASAT 1 [PDF]
Journal of Astronomy and Space Sciences, 2016 Inactive space objects are usually rotating and tumbling as a result of internal or external forces. KOREASAT 1 has been inactive since 2005, and its drift trajectory has been monitored with the optical wide-field patrol network (OWL-Net).
Jin Choi +15 more
doaj +1 more source
What Makes Some People Think Astrology Is Scientific? [PDF]
, 2010 Citizens in both North America and Europe are apt to read horoscope columns in newspapers and magazines. While some people read these casually and purely for entertainment, some believe that astrology has scientific status and can provide real insight ...
Allum, Nick
core +1 more source
, 2013 We present novel observations utilising the Cassini spacecraft to conduct an observing campaign for stellar astronomy from a vantage point in the outer solar system. By exploiting occultation events in which Mira passed behind the Saturnian ring plane as
Hedman, Matthew M. +4 more
core +1 more source
, 2012 Accretion-powered X-ray pulsars exhibit significant variability of the Cyclotron Resonance Scattering Feature (CRSF) centroid energy on pulse-to-pulse timescales, and also on much longer timescales. Two types of spectral variability are observed.
Araya-Góchez +43 more
core +1 more source
Scales of the magnetic fields in the quiet Sun [PDF]
, 2012 Context: The presence of a turbulent magnetic field in the quiet Sun has been unveiled observationally using different techniques. The magnetic field is quasi-isotropic and has field strengths weaker than 100G. It is pervasive and may host a local dynamo.
A. López Ariste +34 more
core +1 more source
A Review of the Characteristics of Light Pollution: Assessment Technique, Policy, and Legislation
EnergiesLight pollution from the use of artificial lighting poses significant impacts on human health, traffic safety, ecological environment, astronomy, and energy use.
Ying Hao +4 more
doaj +1 more source