The University of Southampton
University of Southampton Institutional Repository

GravityCam: Wide-field high-resolution high-cadence imaging surveys in the visible from the ground

GravityCam: Wide-field high-resolution high-cadence imaging surveys in the visible from the ground
GravityCam: Wide-field high-resolution high-cadence imaging surveys in the visible from the ground
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.
1323-3580
Mackay, C.
b7bc8866-cfd1-4e97-8fe4-d9e90c3446bd
Dominik, M.
511df084-2aed-4be1-8f2b-6f1a11aa2e6a
Steele, I. A.
f1e6f218-4a2b-4a00-a8f9-93a8ce35c797
Snodgrass, C.
df71f691-52e9-46d7-9ac4-3652a94ba770
Jørgensen, U. G.
29f05d39-ebe1-4eaa-972b-d001363d89ac
Skottfelt, J.
8f42cacd-0261-4caa-9877-2219c8e47033
Stefanov, K.
39d95914-dbb7-450b-9b9a-fbe6cfa6a16d
Carry, B.
d4cdf027-07ed-4e2a-9e6c-2625fa42bca4
Braga-ribas, F.
d033f603-3513-4334-beee-2297a402f274
Doressoundiram, A.
adeac4e8-69a5-4cc8-9c2e-e8b045fb219f
Ivanov, V. D.
3d83ff7c-b4ce-4abd-8ffc-db071c17fecd
Gandhi, P.
5bc3b5af-42b0-4dd8-8f1f-f74048d4d4a9
Evans, D. F.
dfeb0026-de4d-482c-a3c6-df64357e90b0
Hundertmark, M.
bcdee73a-d510-413c-98ab-aec4609b1079
Serjeant, S.
694633e3-bd1f-42f1-b04d-2b5d6cc186b9
Ortolani, S.
91b3ef88-3a14-434e-8074-374fa74f8c90
Mackay, C.
b7bc8866-cfd1-4e97-8fe4-d9e90c3446bd
Dominik, M.
511df084-2aed-4be1-8f2b-6f1a11aa2e6a
Steele, I. A.
f1e6f218-4a2b-4a00-a8f9-93a8ce35c797
Snodgrass, C.
df71f691-52e9-46d7-9ac4-3652a94ba770
Jørgensen, U. G.
29f05d39-ebe1-4eaa-972b-d001363d89ac
Skottfelt, J.
8f42cacd-0261-4caa-9877-2219c8e47033
Stefanov, K.
39d95914-dbb7-450b-9b9a-fbe6cfa6a16d
Carry, B.
d4cdf027-07ed-4e2a-9e6c-2625fa42bca4
Braga-ribas, F.
d033f603-3513-4334-beee-2297a402f274
Doressoundiram, A.
adeac4e8-69a5-4cc8-9c2e-e8b045fb219f
Ivanov, V. D.
3d83ff7c-b4ce-4abd-8ffc-db071c17fecd
Gandhi, P.
5bc3b5af-42b0-4dd8-8f1f-f74048d4d4a9
Evans, D. F.
dfeb0026-de4d-482c-a3c6-df64357e90b0
Hundertmark, M.
bcdee73a-d510-413c-98ab-aec4609b1079
Serjeant, S.
694633e3-bd1f-42f1-b04d-2b5d6cc186b9
Ortolani, S.
91b3ef88-3a14-434e-8074-374fa74f8c90

Mackay, C., Dominik, M., Steele, I. A., Snodgrass, C., Jørgensen, U. G., Skottfelt, J., Stefanov, K., Carry, B., Braga-ribas, F., Doressoundiram, A., Ivanov, V. D., Gandhi, P., Evans, D. F., Hundertmark, M., Serjeant, S. and Ortolani, S. (2018) GravityCam: Wide-field high-resolution high-cadence imaging surveys in the visible from the ground. Publications of the Astronomical Society of Australia, 35, [e047]. (doi:10.1017/pasa.2018.43).

Record type: Article

Abstract

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.

Text
GravityCam- Wide Field High Resolution - Accepted Manuscript
Download (3MB)

More information

Accepted/In Press date: 25 September 2018
Published date: 27 December 2018

Identifiers

Local EPrints ID: 427939
URI: http://eprints.soton.ac.uk/id/eprint/427939
ISSN: 1323-3580
PURE UUID: 2a4fc7ac-cdf1-4e6a-898b-e5f68eb0528e
ORCID for P. Gandhi: ORCID iD orcid.org/0000-0003-3105-2615

Catalogue record

Date deposited: 05 Feb 2019 17:30
Last modified: 07 Oct 2020 02:06

Export record

Altmetrics

Contributors

Author: C. Mackay
Author: M. Dominik
Author: I. A. Steele
Author: C. Snodgrass
Author: U. G. Jørgensen
Author: J. Skottfelt
Author: K. Stefanov
Author: B. Carry
Author: F. Braga-ribas
Author: A. Doressoundiram
Author: V. D. Ivanov
Author: P. Gandhi ORCID iD
Author: D. F. Evans
Author: M. Hundertmark
Author: S. Serjeant
Author: S. Ortolani

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×