Near-Infrared Photometry of Blazars
Two days of observations were conducted at the Palomar Observatory during the nights of 25 and 26 February 1997 with
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Near-infrared photometry of blazars
The rapid variability of blazars in almost all wavelengths is now well established. Two days of observations were conducted at
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Observations of Mkn 421 using Pachmarhi Array of Čerenkov Telescopes
Pachmarhi Array of Čerenkov Telescopes (PACT), based on wavefront sampling technique, has been used for detecting TeV gamma rays from
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Optical Seeing and Infrared Atmospheric Transparency in the Upper Atacama Desert
With plans to build a large IR/optical telescope in the Atacama Desert, a site survey campaign has been underway since
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Search for gamma-rays above 10 TeV from Markarian 421 in a high state with the CANGAROO-II telescope
A preliminary result from Markarian 421 observations in the energy region above 10 TeV with the CANGAROO-II 10 m telescope
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Simultaneous intensive photometry and high resolution spectroscopy of delta Scuti stars. III. Mode identifications and physical calibrations in HD 2724
On the basis of our new simultaneous photometry and spectroscopy (885 uvby differential measurements in 11 nights and 154 spectrograms
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SNLS -- the Supernova Legacy Survey
Type Ia supernovae provide direct evidence for an accelerating universe, and for the existence of "dark energy" driving this expansion.
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1996 multisite photometric and spectral campaign on the lambda Boo star 29 Cyg
The preliminary results of a 1996 multisite campaign on the pulsating lambda Bootis star 29 Cyg are presented. This campaign,
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A New Cataclysmic Variable RX J0757.0+6306: Candidate for the Shortest Period Intermediate Polar
A new cataclysmic variable is identified as the optical counterpart of the faint and hard X-ray source RX J0757.0+6306 discovered
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A search for solar-like oscillations in alpha Cen A
We have been using a new method to search for solar-like oscillations that involves measuring temperature changes via their effect
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CCD Photometry of Dwarf Nova AL Com in Superoutburst
We report a CCD optical photometry of a dwarf nova AL Com in superoutburst. Before superhumps occurred the light curve
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Constraining $(Ω,Λ)$ from weak lensing in clusters: the triplet method
We present a new geometrical method which uses weak gravitational lensing effects in clusters to constrain the cosmological parameters Omega
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Curious Variables Experiment (CURVE). CCD Photometry of Dwarf Nova V660 Herculis
We report extensive photometry of the dwarf nova V660 Herculis. During our campaign, lasting from August 2003 to November 2004,
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Discovery of 5 Minutes Sine-like Oscillations in the light curve of the Asteroid 1689 Floris-Jan
We present CCD photometry of the long period asteroid 1689 Floris-Jan. On the light curve from nights 1997.02.10/11 and 1997.02.11/12
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Extreme intranight variability in the BL Lacertae object AO 0235+164
We present results of two-colour photometry with high time resolution of the violently variable BL Lac object AO 0235+164. We
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IW And is a Z Cam-Type Dwarf Nova
IW And was discovered as a unique blue variable, which spends 72% of time in "inactive" state, and was only
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MEGA, a Wide-Field Survey of Microlensing in M31
We detail how microlensing internal to M31 could be used to test whether a large fraction of the matter in
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Near-Infrared Galaxy Surveys in 2D, 3D & 4D
The completeness and reliability of the DENIS IJK survey and the EDSGC (derived from the COSMOS scans of USKT plates)
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Observing Near Earth Asteroids with a Small Telescope
Even from a light polluted city it is possible to observe Near Earth Asteroids (NEAs) at opposition using a small
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Optical Line profile variability of the B1+neutron star binary system LS I+65 010 = 2S 0114+650
We present high resolution spectroscopic observations of the massive X-ray binary system LS I+65 010=2S 0114+650 in the optical wavelength
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Performance of the CFHT Adaptive Optics Bonnette
Extensive results from the commissioning phase of PUEO, the adaptive optics instrument adaptor for the Canada-France-Hawaii telescope, are presented and
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Photometric and H$α$ observations of LSI+61303: detection of a $\sim$26 day V and JHK band modulation
We present new optical and infrared photometric observations and high resolution H$α$ spectra of the periodic radio star \lsi. The
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Rapid optical spectroscopy of X-ray binaries with Keck II
The large collecting area of 4+ metre class telescopes allows atronomers to observe bright objects on faster timescales than previously
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Rapid Variations in V2275 Cyg (Nova Cyg 2001 #2)
We present time-resolved CCD photometry of V2275 Cyg 790 days after the nova outburst. The data show a 20% peak-to-peak
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