87 citations · 242 across the 9 of their papers we have counts for
9 papers
Pluto's lower atmosphere and pressure evolution from ground-based stellar occultations, 1988-2016
E. Meza, B. Sicardy, M. Assafin +167
Context. Pluto's tenuous nitrogen (N2) atmosphere undergoes strong seasonal effects due to high obliquity and orbital eccentricity, and has been recently (July 2015) observed by th…
Pluto's atmosphere from the 29 June 2015 ground-based stellar occultation at the time of the New Horizons flyby
B. Sicardy, J. Talbot, E. Meza +65
We present results from a multi-chord Pluto stellar occultation observed on 29 June 2015 from New Zealand and Australia. This occurred only two weeks before the NASA New Horizons f…
The optical ephemeris and X-ray variability of 4U 1735-44 (V926 Sco)
A. B. Giles, K. M. Hill
Optical observations of the low mass X-ray binary 4U 1735-44 were obtained during 1997-2007 and combined with earlier published observations from 1984-1993 to refine the ephemeris…
A transient I band excess in the optical spectrum of the accreting millisecond pulsar SAX J1808.4-3658
J. G. Greenhill, A. B. Giles, C. Coutures
The optical counterpart of the transient, millisecond X-ray pulsar SAX J1808.4-3658 was observed in four colours (BVRI) for five weeks during the 2005 June-July outburst. The optic…
Burst Oscillation Periods from 4U 1636--53: A Constraint on the Binary Doppler Modulation
A. B. Giles, K. M. Hill, T. E. Strohmayer +1
We present a study of the distribution of asymptotic burst oscillation periods for a sample of 26 bursts from 4U 1636-53 observed with the Rossi X-ray Timing Explorer (RXTE). The b…
Accretion column eclipses in the X-ray pulsars GX 1+4 and RX J0812.4-3114
D. K. Galloway, A. B. Giles, K. Wu +1
Sharp dips observed in the pulse profiles of three X-ray pulsars (GX 1+4, RX J0812.4-3114 and A 0535+26) have previously been suggested to arise from partial eclipses of the emissi…