GravityCam: Wide-filed high-resolution high-cadence imaging surveys in the visible form the ground

被引：3

作者：

Mackay, C. ^{[1
]}

Dominik, M. ^{[2
]}

Steele, I. A. ^{[3
]}

Snodgrass, C. ^{[4
]}

Jorgensen, U. G. ^{[5
,6
]}

Skottfelt, J. ^{[4
]}

Stefanov, K. ^{[4
]}

Carry, B. ^{[7
]}

Braga-Ribas, F. ^{[8
]}

Doressoundiram, A. ^{[9
]}

Ivanov, V. D. ^{[10
,11
]}

Gandhi, P. ^{[12
]}

Evans, D. F. ^{[13
]}

Hundertmark, M. ^{[14
]}

Serjeant, S. ^{[4
]}

Ortolani, S. ^{[15
,16
]}

机构：

[1] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[2] Univ St Andrews, SUPA Sch Phys & Astron, Ctr Exoplanet Sci, St Andrews KY16 9SS, Fife, Scotland

[3] Liverpool John Moores Univ, Astrophys Res Inst, Liverpool CH41 1LD, Merseyside, England

[4] Open Univ, Sch Phys Sci, Milton Keynes MK7 6AA, Bucks, England

[5] Univ Copenhagen, Niels Bohr Inst, Oster Voldgade 5, DK-1350 Copenhagen, Denmark

[6] Univ Copenhagen, Ctr Star & Planet Format, Oster Voldgade 5, DK-1350 Copenhagen, Denmark

[7] Univ Cote Azur, Observ Cote Azur, CNRS, Lab Lagrange, Nice, France

[8] Univ Tecnol Fed Parana, UTFPR, DAFIS, Curitiba, Parana, Brazil

[9] Observ Paris LESIA, 5 Pl Jules Janssen, F-92195 Meudon, France

[10] European Southern Observ, Ave Alonso Cordova 3107, Santiago, Chile

[11] European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Bavaria, Germany

[12] Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England

[13] Keele Univ, Astrophys Grp, Keele ST5 5BG, Staffs, England

[14] Univ Heidelberg ZAH, Zentrum Astron, Astron Rechen Inst, D-69120 Heidelberg, Baden Wurttembe, Germany

[15] Univ Padua, Dipartimento Fis & Astron, Vicolo Osservatorio 3, I-35122 Padua, Italy

[16] Osserv Astron Padova, INAF, Vicolo Osservatorio 5, I-35122 Padua, Italy

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA | 2018年 / 35卷

关键词：

asteroseismology; gravitational lensing: micro; gravitational lensing: weak; Kuiper belt: general; (stars:) planetary systems; X-RAY; OPTICAL/X-RAY; ADAPTIVE OPTICS; EARTH-MASS; LUCKY; VARIABILITY; PLANETS; STARS; ACCRETION; GALAXY;

D O I：

10.1017/pasa.2018.43

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

GravityCam is a new concept of ground-based imaging instrument capable of delivering significantly sharper images from the ground than is normally possible without adaptive optics. Advances in optical and near-infrared imaging technologies allow images to be acquired at high speed without significant noise penalty. Aligning these images before they are combined can yield a 2.5-3-fold improvement in image resolution. By using arrays of such detectors, survey fields may be as wide as the telescope optics allows. Consequently, GravityCam enables both wide-field high-resolution imaging and high-speed photometry. We describe the instrument and detail its application to provide demographics of planets and satellites down to Lunar mass (or even below) across the Milky Way. GravityCam is also suited to improve the quality of weak shear studies of dark matter distribution in distant clusters of galaxies and multiwavelength follow-ups of background sources that are strongly lensed by galaxy clusters. The photometric data arising from an extensive microlensing survey will also be useful for asteroseismology studies, while GravityCam can be used to monitor fast multiwavelength flaring in accreting compact objects and promises to generate a unique data set on the population of the Kuiper belt and possibly the Oort cloud.

引用

页数：18

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