37
37
Sep 21, 2013
09/13
by
J. S. Lawrence; M. C. B. Ashley; A. Bunker; R. Bouwens; D. Burgarella; M. G. Burton; N. Gehrels; K. Glazebrook; K. Pimbblet; R. Quimby; W. Saunders; J. W. V. Storey; J. C. Wheeler
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PILOT (the Pathfinder for an International Large Optical Telescope) is a proposed 2.5 m optical/infrared telescope to be located at Dome C on the Antarctic plateau. The atmospheric conditions at Dome C deliver a high sensitivity, high photometric precision, wide-field, high spatial resolution, and high-cadence imaging capability to the PILOT telescope. These capabilities enable a unique scientific potential for PILOT, which is addressed in this series of papers. The current paper presents a...
Source: http://arxiv.org/abs/0905.4616v1
46
46
Sep 22, 2013
09/13
by
Hu Zou; Xu Zhou; Zhaoji Jiang; M. C. B. Ashley; Xiangqun Cui; Longlong Feng; Xuefei Gong; Jingyao Hu; C. A. Kulesa; J. S. Lawrence; Genrong Liu; D. M. Luong-Van; Jun Ma; A. M. Moore; Weijia Qin; Zhaohui Shang; J. W. V. Storey; Bo Sun; T. Travouillon; C. K. Walker; Jiali Wang; Lifan Wang; Jianghua Wu; Zhenyu Wu; Lirong Xia; Jun Yan; Ji Yang; Huigen Yang; Yongqiang Yao; Xiangyan Yuan; D. York; Zhanhai Zhang; Zhenxi Zhu
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The i-band observing conditions at Dome A on the Antarctic plateau have been investigated using data acquired during 2008 with the Chinese Small Telescope ARray. The sky brightness, variations in atmospheric transparency, cloud cover, and the presence of aurorae are obtained from these images. The median sky brightness of moonless clear nights is 20.5 mag arcsec^{-2} in the SDSS $i$ band at the South Celestial Pole (which includes a contribution of about 0.06 mag from diffuse Galactic light)....
Source: http://arxiv.org/abs/1001.4951v2
40
40
Sep 21, 2013
09/13
by
J. S. Lawrence; M. C. B. Ashley; J. Bailey; D. Barrado y Navascues; T. Bedding; J. Bland-Hawthorn; I. Bond; F. Boulanger; R. Bouwens; H. Bruntt; A. Bunker; D. Burgarella; M. G. Burton; M. Busso; D. Coward; M. -R. Cioni; G. Durand; C. Eiroa; N. Epchtein; N. Gehrels; P. Gillingham; K. Glazebrook; R. Haynes; L. Kiss; P. O. Lagage; T. Le Bertre; C. Mackay; J. P. Maillard; A. McGrath; V. Minier; A. Mora; K. Olsen; P. Persi; K. Pimbblet; R. Quimby; W. Saunders; B. Schmidt; D. Stello; J. W. V. Storey; C. Tinney; P. Tremblin; J. C. Wheeler; P. Yoc
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eye 40
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PILOT (the Pathfinder for an International Large Optical Telescope) is a proposed 2.5 m optical/infrared telescope to be located at Dome C on the Antarctic plateau. Conditions at Dome C are known to be exceptional for astronomy. The seeing (above ~30 m height), coherence time, and isoplanatic angle are all twice s good as at typical mid-latitude sites, while the water-vapour column, and the atmosphere and telescope thermal emission are all an order of magnitude better. These conditions enable a...
Source: http://arxiv.org/abs/0905.4432v1
7
7.0
Jun 27, 2018
06/18
by
Songhu Wang; Hui Zhang; Xu Zhou; Ji-Lin Zhou; Jian-Ning Fu; Ming Yang; Huigen Liu; Jiwei Xie; Lifan Wang; Lingzhi Wang; R. A. Wittenmyer; M. C. B. Ashley; Long-Long Feng; Xuefei Gong; J. S. Lawrence; Qiang Liu; D. M. Luong-Van; Jun Ma; Xiyan Peng; J. W. V. Storey; Zhenyu Wu; Jun Yan; Huigen Yang; Ji Yang; Xiangyan Yuan; Tianmeng Zhang; Xiaojia Zhang; Zhenxi Zhu; Hu Zou
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The Chinese Small Telescope ARray (CSTAR) is the first telescope facility built at Dome A, Antarctica. During the 2008 observing season, the installation provided long-baseline and high-cadence photometric observations in the i-band for 18,145 targets within 20 deg2 CSTAR field around the South Celestial Pole for the purpose of monitoring the astronomical observing quality of Dome A and detecting various types of photometric variability. Using sensitive and robust detection methods, we discover...
Topics: Solar and Stellar Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1505.01496
36
36
Sep 22, 2013
09/13
by
J. M. Rathborne; M. G. Burton; K. J. Brooks; M. Cohen; M. C. B. Ashley; J. W. V. Storey
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eye 36
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We have obtained wide-field thermal infrared (IR) images of the Carina Nebula, using the SPIREX/Abu telescope at the South Pole. Emission from poly-cyclic aromatic hydrocarbons (PAHs) at 3.29um, a tracer of photodissociation regions (PDRs), reveals many interesting well defined clumps and diffuse regions throughout the complex. Near-IR images (1--2um), along with images from the Midcourse Space Experiment (MSX) satellite (8--21um) were incorporated to study the interactions between the young...
Source: http://arxiv.org/abs/astro-ph/0111318v1
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45
Sep 19, 2013
09/13
by
K. J. Brooks; M. G. Burton; J. M. Rathborne; M. C. B. Ashley; J. W. V. Storey
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eye 45
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To better understand the environment surrounding CO emission clumps in the Keyhole Nebula, we have made images of the region in H2 1-0 S(1) (2.122 um) emission and polycyclic aromatic hydrocarbon (PAH) emission at 3.29 um. Our results show that the H2 and PAH emission regions are morphologically similar, existing as several clumps, all of which correspond to CO emission clumps and dark optical features. The emission confirms the existence of photodissociation regions (PDRs) on the surface of...
Source: http://arxiv.org/abs/astro-ph/0010154v1
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30
Sep 18, 2013
09/13
by
T. Boeker; A. Krabbe; J. W. V. Storey
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eye 30
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We report on mid-infrared (MIR) continuum and line emission mapping of the nucleus of NGC 253. The data, with a resolution of 1\as.4, reveal a double-peaked arc-like [NeII] emission region. Comparison with published data shows that the [NeII] arc is centered on the nucleus of the galaxy. The brightest [NeII] source coincides with the infrared continuum peak. The interpretation of these results is complicated by the edge-on orientation of NGC 253, but a self-consistent explanation is...
Source: http://arxiv.org/abs/astro-ph/9803108v1
3
3.0
Jun 30, 2018
06/18
by
Songhu Wang; Hui Zhang; Ji-Lin Zhou; Xu Zhou; Ming Yang; Lifan Wang; D. Bayliss; G. Zhou; M. C. B. Ashley; Zhou Fan; Long-Long Feng; Xuefei Gong; J. S. Lawrence; Huigen Liu; Qiang Liu; D. M. Luong-Van; Jun Ma; Zeyang Meng; J. W. V. Storey; R. A. Wittenmyer; Zhenyu Wu; Jun Yan; Huigen Yang; Ji Yang; Jiayi Yang; Xiangyan Yuan; Tianmeng Zhang; Zhenxi Zhu; Hu Zou
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The Chinese Small Telescope ARray (CSTAR) is a group of four identical, fully automated, static 14.5 cm telescopes. CSTAR is located at Dome A, Antarctica and covers 20 square degree of sky around the South Celestial Pole. The installation is designed to provide high-cadence photometry for the purpose of monitoring the quality of the astronomical observing conditions at Dome A and detecting transiting exoplanets. CSTAR has been operational since 2008, and has taken a rich and high-precision...
Topics: Earth and Planetary Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1403.0086
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32
Sep 19, 2013
09/13
by
K. J. Brooks; J. B. Whiteoak; J. W. V. Storey
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eye 32
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The Carina Nebula is an extremely bright southern HII region embedded in a giant molecular cloud and contains some of the most massive stars known in our Galaxy. We are undertaking a multi-wavelength study of the Carina Nebula in order to examine the detailed kinematics and distribution of the molecular and ionised gas, and to look for further evidence of ongoing star formation. Here we present the results of the initial molecular cloud observations which were made by observing the 12CO(1-0)...
Source: http://arxiv.org/abs/astro-ph/9804293v1
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56
Sep 23, 2013
09/13
by
P. Tremblin; V. Minier; N. Schneider; G. Al. Durand; M. C. B. Ashley; J. S. Lawrence; D. M. Luong-Van; J. W. V. Storey; G. An. Durand; Y. Reinert; C. Veyssiere; C. Walter; P. Ade; P. G. Calisse; Z. Challita; E. Fossat; L. Sabbatini; A. Pellegrini; P. Ricaud; J. Urban
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eye 56
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Over the past few years a major effort has been put into the exploration of potential sites for the deployment of submillimetre astronomical facilities. Amongst the most important sites are Dome C and Dome A on the Antarctic Plateau, and the Chajnantor area in Chile. In this context, we report on measurements of the sky opacity at 200 um over a period of three years at the French-Italian station, Concordia, at Dome C, Antarctica. We also present some solutions to the challenges of operating in...
Source: http://arxiv.org/abs/1110.4311v1
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46
Sep 22, 2013
09/13
by
Xu Zhou; Zhou Fan; Zhaoji Jiang; M. C. B. Ashley; Xiangqun Cui; Longlong Feng; Xuefei Gong; Jingyao Hu; C. A. Kulesa; J. S. Lawrence; Genrong Liu; D. M. Luong-Van; Jun Ma; A. M. Moore; Weijia Qin; Zhaohui Shang; J. W. V. Storey; Bo Sun; T. Travouillon; C. K. Walker; Jiali Wang; Lifan Wang; Jianghua Wu; Zhenyu Wu; Lirong Xia; Jun Yan; Ji Yang; Huigen Yang; Xiangyan Yuan; D. York; Zhanhai Zhang; Zhenxi Zhu
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eye 46
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In 2008 January the 24th Chinese expedition team successfully deployed the Chinese Small Telescope ARray (CSTAR) to DomeA, the highest point on the Antarctic plateau. CSTAR consists of four 14.5cm optical telescopes, each with a different filter (g, r, i and open) and has a 4.5degree x 4.5degree field of view (FOV). It operates robotically as part of the Plateau Observatory, PLATO, with each telescope taking an image every 30 seconds throughout the year whenever it is dark. During 2008, CSTAR...
Source: http://arxiv.org/abs/1001.4941v1
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27
Sep 19, 2013
09/13
by
S. D. Ryder; L. E. Allen; M. G. Burton; M. C. B. Ashley; J. W. V. Storey
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eye 27
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The newly-commissioned University of New South Wales Infrared Fabry-Perot (UNSWIRF) has been used to image molecular hydrogen emission at 2.12 and 2.25 microns in the reflection nebula Parsamyan 18. P 18 is known to exhibit low values of the (1-0)/(2-1) S(1) ratio suggestive of UV-pumped fluorescence rather than thermal excitation by shocks. Our line ratio mapping reveals the full extent of this fluorescent emission from extended arc-like features, as well as a more concentrated thermal...
Source: http://arxiv.org/abs/astro-ph/9709237v1
85
85
Sep 21, 2013
09/13
by
J. S. Lawrence; M. C. B. Ashley; J. Bailey; D. Barrado y Navascues; T. Bedding; J. Bland-Hawthorn; I. Bond; H. Bruntt; M. G. Burton; M. -R. Cioni; C. Eiroa; N. Epchtein; L. Kiss; P. O. Lagage; V. Minier; A. Mora; K. Olsen; P. Peri; W. Saunders; D. Stello; J. W. V. Storey; C. Tinney; P. Yock
texts
eye 85
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PILOT (the Pathfinder for an International Large Optical Telescope is a proposed 2.5 m optical/infrared telescope to be located at DomeC on the Antarctic plateau. The atmospheric conditions at Dome C deliver a high sensitivity, high photometric precision, wide-field, high spatial resolution, and high-cadence imaging capability to the PILOT telescope. These capabilities enable a unique scientific potential for PILOT, which is addressed in this series of papers. The current paper presents a...
Source: http://arxiv.org/abs/0905.4636v1
129
129
Sep 23, 2013
09/13
by
M. G. Burton; J. Lawrence; M. C. B. Ashley; J. A. Bailey; C. Blake; T. R. Bedding; J. Bland-Hawthorn; I. A. Bond; K. Glazebrook; M. G. Hidas; G. Lewis; S. N. Longmore; S. T. Maddison; S. Mattila; V. Minier; S. D. Ryder; R. Sharp; C. H. Smith; J. W. V. Storey; C. G. Tinney; P. Tuthill; A. J. Walsh; W. Walsh; M. Whiting; T. Wong; D. Woods; P. C. M. Yock
texts
eye 129
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The cold, dry and stable air above the summits of the Antarctic plateau provides the best ground-based observing conditions from optical to sub-mm wavelengths to be found on the Earth. PILOT is a proposed 2 m telescope, to be built at Dome C in Antarctica, able to exploit these conditions for conducting astronomy at optical and infrared wavelengths. While PILOT is intended as a pathfinder towards the construction of future grand-design facilities, it will also be able to undertake a range of...
Source: http://arxiv.org/abs/astro-ph/0411612v2
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43
Sep 23, 2013
09/13
by
W. Saunders; P. R. Gillingham; A. J. McGrath; J. W. V. Storey; J. S. Lawrence
texts
eye 43
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The proposed design for PILOT is a general-purpose, wide-field 1 degree 2.4m, f/10 Ritchey-Chretien telescope, with fast tip-tilt guiding, for use 0.5-25 microns. The design allows both wide-field and diffraction-limited use at these wavelengths. The expected overall image quality, including median seeing, is 0.28-0.3" FWHM from 0.8-2.4 microns. Point source sensitivities are estimated.
Source: http://arxiv.org/abs/0801.4438v1
12
12
Jun 27, 2018
06/18
by
Ming Yang; Hui Zhang; Songhu Wang; Ji-Lin Zhou; Xu Zhou; Lingzhi Wang; Lifan Wang; R. A. Wittenmyer; Hui-Gen Liu; Zeyang Meng; M. C. B. Ashley; J. W. V. Storey; D. Bayliss; Chris Tinney; Ying Wang; Donghong Wu; Ensi Liang; Zhouyi Yu; Zhou Fan; Long-Long Feng; Xuefei Gong; J. S. Lawrence; Qiang Liu; D. M. Luong-Van; Jun Ma; Zhenyu Wu; Jun Yan; Huigen Yang; Ji Yang; Xiangyan Yuan; Tianmeng Zhang; Zhenxi Zhu; Hu Zou
texts
eye 12
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The Chinese Small Telescope ARray (CSTAR) has observed an area around the Celestial South Pole at Dome A since 2008. About $20,000$ light curves in the i band were obtained lasting from March to July, 2008. The photometric precision achieves about 4 mmag at i = 7.5 and 20 mmag at i = 12 within a 30 s exposure time. These light curves are analyzed using Lomb--Scargle, Phase Dispersion Minimization, and Box Least Squares methods to search for periodic signals. False positives may appear as a...
Topics: Solar and Stellar Astrophysics, Instrumentation and Methods for Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1504.05281
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77
Sep 21, 2013
09/13
by
K. J. Brooks; J. W. V. Storey; J. B. Whiteoak
texts
eye 77
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We present results from observations of H110alpha recombination-line emission at 4.874 GHz and the related 4.8-GHz continuum emission towards the Carina Nebula using the Australia Telescope Compact Array. These data provide information on the velocity, morphology and excitation parameters of the ionized gas associated with the two bright HII regions within the nebula, Car I and Car II. They are consistent with both Car I and Car II being expanding ionization fronts arising from the massive star...
Source: http://arxiv.org/abs/astro-ph/0104344v1
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60
Jul 20, 2013
07/13
by
S. L. Kenyon; J. S. Lawrence; M. C. B. Ashley; J. W. V. Storey; A. Tokovinin; E. Fossat
texts
eye 60
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We present low-resolution turbulence profiles of the atmosphere above Dome C, Antarctica, measured with the MASS instrument during 25 nights in March-May 2004. Except for the lowest layer, Dome C has significantly less turbulence than Cerro Tololo and Cerro Pachon. In particular, the integrated turbulence at 16 km is always less than the median values at the two Chilean sites. From these profiles we evaluate the photometric noise produced by scintillation, and the atmospheric contribution to...
Source: http://arxiv.org/abs/astro-ph/0604538v1
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31
Sep 22, 2013
09/13
by
J. W. V. Storey
texts
eye 31
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In the 1970s the microwave spectroscopy group at Monash University became the first in the world to determine the spectral frequencies of urea, glycine, and several other biomolecules. We immediately searched for these at Parkes, using existing centimetre-wave receivers plus newly built receivers that operated at frequencies as high as 75GHz (and used just the central 17 m of the dish). Although these searches were largely unsuccessful, they helped launch the now flourishing field of...
Source: http://arxiv.org/abs/1210.0982v1
