120 citations · 395 across the 18 of their papers we have counts for
19 papers
WST -- Widefield Spectroscopic Telescope: Motivation, science drivers and top-level requirements for a new dedicated facility
Roland Bacon, Vincenzo Maineiri, Sofia Randich +37
In this paper, we describe the wide-field spectroscopic survey telescope (WST) project. WST is a 12-metre wide-field spectroscopic survey telescope with simultaneous operation of a…
A comparison of next-generation turbulence profiling instruments at Paranal
Ryan Griffiths, Lisa Bardou, Timothy Butterley +6
A six-night optical turbulence monitoring campaign has been carried at Cerro Paranal observatory in February and March, 2023 to facilitate the development and characterisation of t…
Effects of the Hunga Tonga-Hunga Ha'apai Volcanic Eruption on Observations at Paranal Observatory
Robert J. De Rosa, Angel Otarola, Thomas Szeifert +8
The Hunga Tonga-Hunga Ha'apai volcano erupted on 15 January 2022 with an energy equivalent to around 61 megatons of TNT. The explosion was bigger than any other volcanic eruption s…
The ESO's Extremely Large Telescope Working Groups
Paolo Padovani, Michele Cirasuolo, Remco van der Burg +82
Since 2005 ESO has been working with its community and industry to develop an extremely large optical/infrared telescope. ESO's Extremely Large Telescope, or ELT for short, is a re…
Impact of the SpaceX Starlink Satellites on the Zwicky Transient Facility Survey Observations
Przemek Mroz, Angel Otarola, Thomas A. Prince +6
There is a growing concern about an impact of low-Earth-orbit (LEO) satellite constellations on ground-based astronomical observations, in particular, on wide-field surveys in the…
Analysing the impact of satellite constellations and ESO's role in supporting the astronomy community
Andrew Williams, Olivier Hainaut, Angel Otarola +2
In the coming decade, up to 100 000 satellites in large constellations could be launched into low Earth orbit. The satellites will introduce a variety of negative impacts on astron…
A Report to ESO Council on the Impact of Satellite Constellations
Andrew Williams, Olivier Hainaut, Angel Otarola +4
Up to 100,000 satellites could be launched into Low Earth Orbit (LEO) in the coming decade. Assuming the two most advanced companies' plans are realised, close to 80,000 satellites…
Turbulence nowcast for the Cerro Paranal and Cerro Armazones observatory sites
Julien Milli, Tomás Rojas, Benjamin Courtney-Barrer +4
Optical turbulence affects significantly the quality of ground-based astronomical observations. An accurate and reliable forecast of optical turbulence can help to optimise the sch…
Optical-to-NIR magnitude measurements of the Starlink LEO Darksat satellite and effectiveness of the darkening treatment
J. Tregloan-Reed, A. Otarola, E. Unda-Sanzana +11
Four observations of Starlink's LEO communication satellites, Darksat and STARLINK-1113, were conducted on two nights with two telescopes. The Chakana 0.6\,m telescope at the Ckoir…
First observations and magnitude measurement of Starlink's Darksat
J. Tregloan-Reed, A. Otarola, E. Ortiz +5
Measure the Sloan g' magnitudes of the Starlink's STARLINK-1130 (Darksat) and 1113 LEO communication satellites and determine the effectiveness of the Darksat darkening treatment a…
Measuring line-of-sight sodium density structure using laser guide stars
Joschua A. Hellemeier, Domenico Bonaccini Calia, Paul Hickson +2
The performance of adaptive optics systems employing sodium laser guide stars can be improved by continuously monitoring the vertical density structure of mesospheric sodium along…
Astro2020 Science White Paper: Triggered High-Priority Observations of Dynamic Solar System Phenomena
Nancy Chanover, Michael H. Wong, Thomas Greathouse +30
Unexpected dynamic phenomena have surprised solar system observers in the past and have led to important discoveries about solar system workings. Observations at the initial stages…
Solar system Deep Time-Surveys of atmospheres, surfaces, and rings
Michael H. Wong, Richard Cartwright, Nancy Chanover +20
Imaging and resolved spectroscopy reveal varying environmental conditions in our dynamic solar system. Many key advances have focused on how these conditions change over time. Obse…
Precipitable Water Vapor, Temperature, and Wind Statistics At Sites Suitable for mm and Submm Wavelength Astronomy in Northern Chile
Angel Otarola, Carlos De Breuck, Tony Travouillon +7
Atmospheric water vapor is the main limiting factor of atmospheric transparency in the mm and submm wavelength spectral windows. Thus, dry sites are needed for the installation and…
A Sodium laser guide star coupling efficiency measurement method
Feng Lu, Zhi-Xia Shen, Suijian Xue +8
Large telescope's adaptive optics (AO) system requires one or several bright artificial laser guide stars to improve its sky coverage. The recent advent of high power sodium laser…
Thirty Meter Telescope International Observatory Detailed Science Case 2024
Warren Skidmore, Bob Kirshner, David Andersen +168
The Thirty Meter Telescope (TMT) International Observatory (TIO) will be a revolutionary leap forward in astronomical observing capabilities, enabling us to address some of the mos…
Modeling of pulsed laser guide stars for the Thirty Meter Telescope project
S. M. Rochester, A. Otarola, C. Boyer +4
The Thirty Meter Telescope (TMT) has been designed to include an adaptive optics system and associated laser guide star (LGS) facility to correct for the image distortion due to Ea…
Precipitable Water Vapor: Considerations on the water vapor scale height, dry bias of the radiosonde humidity sensors, and spatial and temporal variability of the humidity field
Angel C. Otarola, Richard Querel, Florian Kerber
The Thirty Meter Telescope (TMT) and the European Extremely Large Telescope (E-ELT) site testing teams have recently finalized their site testing studies. Since atmospheric water v…
Thirty Meter Telescope Site Testing I: Overview
M. Schoeck, S. Els, R. Riddle +15
As part of the conceptual and preliminary design processes of the Thirty Meter Telescope (TMT), the TMT site testing team has spent the last five years measuring the atmospheric pr…