On-sky wide-field adaptive optics correction using multiple laser guide stars at the MMT

Christoph Baranec, Michael Hart, N. Mark Milton, Thomas Stalcup, Keith Powell, Miguel Snyder, Vidhya Vaitheeswaran, Donald W Mccarthy, Craig Kulesa

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We describe results from the first astronomical adaptive optics (AO) system to use multiple laser guide stars, located at the 6.5 m MMT telescope in Arizona. Its initial operational mode, ground-layer adaptive optics (GLAO), provides uniform stellar wave front correction within the 2′ diameter laser beacon constellation, reducing the stellar image widths by as much as 53%, from 070 to 033 at λ = 2.14 μm. GLAO is achieved by applying a correction to the telescope's adaptive secondary mirror that is an average of wave front measurements from five laser beacons supplemented with image motion from a faint stellar source. Optimization of the AO system in subsequent commissioning runs will further improve correction performance where it is predicted to deliver 01-02 resolution in the near-infrared during a majority of seeing conditions.

Original languageEnglish (US)
Pages (from-to)1814-1820
Number of pages7
JournalAstrophysical Journal
Volume693
Issue number2
DOIs
StatePublished - Mar 10 2009

Fingerprint

laser guide stars
adaptive optics
sky
laser
beacons
wave fronts
multiple use
telescopes
constellations
near infrared
lasers
mirrors
optimization

Keywords

  • atmospheric effects
  • instrumentation: adaptive optics
  • instrumentation: high angular resolution
  • telescopes

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Baranec, C., Hart, M., Milton, N. M., Stalcup, T., Powell, K., Snyder, M., ... Kulesa, C. (2009). On-sky wide-field adaptive optics correction using multiple laser guide stars at the MMT. Astrophysical Journal, 693(2), 1814-1820. https://doi.org/10.1088/0004-637X/693/2/1814

On-sky wide-field adaptive optics correction using multiple laser guide stars at the MMT. / Baranec, Christoph; Hart, Michael; Milton, N. Mark; Stalcup, Thomas; Powell, Keith; Snyder, Miguel; Vaitheeswaran, Vidhya; Mccarthy, Donald W; Kulesa, Craig.

In: Astrophysical Journal, Vol. 693, No. 2, 10.03.2009, p. 1814-1820.

Research output: Contribution to journalArticle

Baranec, C, Hart, M, Milton, NM, Stalcup, T, Powell, K, Snyder, M, Vaitheeswaran, V, Mccarthy, DW & Kulesa, C 2009, 'On-sky wide-field adaptive optics correction using multiple laser guide stars at the MMT', Astrophysical Journal, vol. 693, no. 2, pp. 1814-1820. https://doi.org/10.1088/0004-637X/693/2/1814
Baranec, Christoph ; Hart, Michael ; Milton, N. Mark ; Stalcup, Thomas ; Powell, Keith ; Snyder, Miguel ; Vaitheeswaran, Vidhya ; Mccarthy, Donald W ; Kulesa, Craig. / On-sky wide-field adaptive optics correction using multiple laser guide stars at the MMT. In: Astrophysical Journal. 2009 ; Vol. 693, No. 2. pp. 1814-1820.
@article{07e7126da30542eeaba7c1014258ecbf,
title = "On-sky wide-field adaptive optics correction using multiple laser guide stars at the MMT",
abstract = "We describe results from the first astronomical adaptive optics (AO) system to use multiple laser guide stars, located at the 6.5 m MMT telescope in Arizona. Its initial operational mode, ground-layer adaptive optics (GLAO), provides uniform stellar wave front correction within the 2′ diameter laser beacon constellation, reducing the stellar image widths by as much as 53{\%}, from 070 to 033 at λ = 2.14 μm. GLAO is achieved by applying a correction to the telescope's adaptive secondary mirror that is an average of wave front measurements from five laser beacons supplemented with image motion from a faint stellar source. Optimization of the AO system in subsequent commissioning runs will further improve correction performance where it is predicted to deliver 01-02 resolution in the near-infrared during a majority of seeing conditions.",
keywords = "atmospheric effects, instrumentation: adaptive optics, instrumentation: high angular resolution, telescopes",
author = "Christoph Baranec and Michael Hart and Milton, {N. Mark} and Thomas Stalcup and Keith Powell and Miguel Snyder and Vidhya Vaitheeswaran and Mccarthy, {Donald W} and Craig Kulesa",
year = "2009",
month = "3",
day = "10",
doi = "10.1088/0004-637X/693/2/1814",
language = "English (US)",
volume = "693",
pages = "1814--1820",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2",

}

TY - JOUR

T1 - On-sky wide-field adaptive optics correction using multiple laser guide stars at the MMT

AU - Baranec, Christoph

AU - Hart, Michael

AU - Milton, N. Mark

AU - Stalcup, Thomas

AU - Powell, Keith

AU - Snyder, Miguel

AU - Vaitheeswaran, Vidhya

AU - Mccarthy, Donald W

AU - Kulesa, Craig

PY - 2009/3/10

Y1 - 2009/3/10

N2 - We describe results from the first astronomical adaptive optics (AO) system to use multiple laser guide stars, located at the 6.5 m MMT telescope in Arizona. Its initial operational mode, ground-layer adaptive optics (GLAO), provides uniform stellar wave front correction within the 2′ diameter laser beacon constellation, reducing the stellar image widths by as much as 53%, from 070 to 033 at λ = 2.14 μm. GLAO is achieved by applying a correction to the telescope's adaptive secondary mirror that is an average of wave front measurements from five laser beacons supplemented with image motion from a faint stellar source. Optimization of the AO system in subsequent commissioning runs will further improve correction performance where it is predicted to deliver 01-02 resolution in the near-infrared during a majority of seeing conditions.

AB - We describe results from the first astronomical adaptive optics (AO) system to use multiple laser guide stars, located at the 6.5 m MMT telescope in Arizona. Its initial operational mode, ground-layer adaptive optics (GLAO), provides uniform stellar wave front correction within the 2′ diameter laser beacon constellation, reducing the stellar image widths by as much as 53%, from 070 to 033 at λ = 2.14 μm. GLAO is achieved by applying a correction to the telescope's adaptive secondary mirror that is an average of wave front measurements from five laser beacons supplemented with image motion from a faint stellar source. Optimization of the AO system in subsequent commissioning runs will further improve correction performance where it is predicted to deliver 01-02 resolution in the near-infrared during a majority of seeing conditions.

KW - atmospheric effects

KW - instrumentation: adaptive optics

KW - instrumentation: high angular resolution

KW - telescopes

UR - http://www.scopus.com/inward/record.url?scp=67650681672&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67650681672&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/693/2/1814

DO - 10.1088/0004-637X/693/2/1814

M3 - Article

VL - 693

SP - 1814

EP - 1820

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

ER -