Publications associées à Astronomie des phénomènes transitoires

LSST: From Science Drivers to Reference Design and Anticipated Data Products

Darong Huang, Jonathan Andrew Blazek, Anja Annemone Becker, Shikhar Tuli, Michelle Miller, Guillaume Blanc, Abhijit Saha, Wei Cui, Christopher Montgomery, Darko Jevremovic

We describe here the most ambitious survey currently planned in the optical, the Large Synoptic Survey Telescope (LSST). The LSST design is driven by four main science themes: probing dark energy and dark matter, taking an inventory of the solar system, ex ...

IOP PUBLISHING LTD2019

Impact of the 3D source geometry on time-delay measurements of lensed type-Ia supernovae

Frédéric Courbin, Martin Raoul Robert Millon, Hung-Hsu Chan, Vivien François Bonvin, Olga Tihhonova, Elodie Marie Charlène Savary

It has recently been proposed that gravitationally lensed type-Ia supernovae can provide microlensing-free time-delay measurements provided that the measurement is taken during the achromatic expansion phase of the explosion and that color light curves are ...

EDP SCIENCES S A2019

Accretion Disk Size Measurement and Time Delays in the Lensed Quasar WFI 2033-4723

Frédéric Courbin, Vivien François Bonvin

We present 13 seasons of R-band photometry of the quadruply lensed quasarWFI 2033-4723 from the 1.3m SMARTS telescope at CTIO and the 1.2m Euler Swiss Telescope at La Silla, in which we detect microlensing variability of similar to 0.2mag on a timescale of ...

IOP PUBLISHING LTD2018

The Time-Domain Spectroscopic Survey: Understanding The Optically Variable Sky With Sequels In Sdss-Iii

Jean-Paul Richard Kneib, Yue Shen

The Time-Domain Spectroscopic Survey (TDSS) is an SDSS-IV eBOSS subproject primarily aimed at obtaining identification spectra of similar to 220,000 optically variable objects systematically selected from SDSS/Pan-STARRS1 multi-epoch imaging. We present a ...

Iop Publishing Ltd2016

On Flexibeam for radio interferometry

Paul Hurley, Matthieu Martin Jean-André Simeoni

Beamforming in radio astronomy focuses at and around a direction using matched beamforming or a derivative, to both maximise the energy coming from this point and reduce the data rate to the central processor. Such beamformers often result in large side-lo ...

2016

High-redshift supernova rates measured with the gravitational telescope A 1689

Jean-Paul Richard Kneib, Johan Richard

Aims. We present a ground-based, near-infrared search for lensed supernovae behind the massive cluster Abell 1689 at z = 0.18, which is one of the most powerful gravitational telescopes that nature provides. Methods. Our survey was based on multi-epoch J-b ...

Edp Sciences S A2016

A Consistent Picture Emerges: A Compact X-Ray Continuum Emission Region In The Gravitationally Lensed Quasar Sdss J0924+0219

Frédéric Courbin, Georges Meylan, Malte Tewes

We analyze the optical, UV, and X-ray microlensing variability of the lensed quasar SDSS J0924+ 0219 using six epochs of Chandra data in two energy bands (spanning 0.4-8.0 keV, or 1-20 keV in the quasar rest frame), 10 epochs of F275W (rest-frame 1089 angs ...

American Astronomical Society2015

FACT - The First G-APD Cherenkov Telescope (first results)

Werner Lustermann, Mathieu Ribordy, Thomas Günther Bretz

In October 2011, the first air-Cherenkov telescope utilizing Geiger-mode avalanche photodiodes commenced operations. The silicon-based devices display several advantages compared to classical photomultiplier tubes allowing for a more compact camera design ...

Amer Inst Physics2012

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Astronomie des phénomènes transitoires

LSST: From Science Drivers to Reference Design and Anticipated Data Products

Detecting shocked intergalactic gas with X-ray and radio observations

Impact of the 3D source geometry on time-delay measurements of lensed type-Ia supernovae

Accretion Disk Size Measurement and Time Delays in the Lensed Quasar WFI 2033-4723

The Time-Domain Spectroscopic Survey: Understanding The Optically Variable Sky With Sequels In Sdss-Iii

On Flexibeam for radio interferometry

High-redshift supernova rates measured with the gravitational telescope A 1689

A Consistent Picture Emerges: A Compact X-Ray Continuum Emission Region In The Gravitationally Lensed Quasar Sdss J0924+0219

Detecting Vortex Burst on a Rotating Low-Aspect Ratio Plate

FACT - The First G-APD Cherenkov Telescope (first results)

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Chattez avec Graph Search

LSST: From Science Drivers to Reference Design and Anticipated Data Products

A Consistent Picture Emerges: A Compact X-Ray Continuum Emission Region In The Gravitationally Lensed Quasar Sdss J0924+0219

The Time-Domain Spectroscopic Survey: Understanding The Optically Variable Sky With Sequels In Sdss-Iii

Detecting shocked intergalactic gas with X-ray and radio observations

FACT - The First G-APD Cherenkov Telescope (first results)

Accretion Disk Size Measurement and Time Delays in the Lensed Quasar WFI 2033-4723

High-redshift supernova rates measured with the gravitational telescope A 1689

Impact of the 3D source geometry on time-delay measurements of lensed type-Ia supernovae

Detecting Vortex Burst on a Rotating Low-Aspect Ratio Plate

On Flexibeam for radio interferometry