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Gemini Observatory events at the 235th Winter AAS

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Gemini Observatory and its partners will have many events at the 235th meeting of the American Astronomical Society (AAS), hosted this year in Honolulu, Hawai'i during 4–8 January 2020.

Visit the Gemini Observatory Booth in the Exhibit Hall at any time!

The Gemini Booth will be situated on the NSF carpet, between the National Solar Observatory and the Large Synoptic Survey Telescope booths. Come to:

  • Get the freshest news about the Gemini Observatory
  • Get personal support for a proposal, an active program and/or Gemini data reduction
  • Get your own deck of the Gemini Card Game!
  • Look at our job opportunities
  • And more...

Gemini Observatory Open House

Tuesday January 7, 2020:  6:00 pm-7:00 pm, Hawaiʻi Convention Center, Room 304 AB

Gemini Observatory invites the community to learn about the latest opportunities for a broad range of science with Gemini’s twin 8.1 m telescopes located on Cerro Pachón in Chile and Maunakea in Hawai‘i. Gemini’s agile queue operations, broad suite of optical and infrared facility and visiting instruments, and diverse proposal opportunities support a variety on-going programs, including time-domain astronomy, high-spatial and high-spectral resolution studies, exoplanets, and extragalactic astronomy. We will present the key points of our recently released Strategic Scientific Plan for Gemini Observatory and provide an update on the Gemini in the Era of Multi-Messenger Astronomy (GEMMA) Program. The GEMMA Program is funded by a major new award from the National Science Foundation in support of two central elements of our Strategic Plan: a state-of-the-art wide-field AO system for Gemini North, and improvements to the Observatory’s ability to respond rapidly to transient events in the time-domain era and quickly deliver science-ready data to our users. We will describe progress on Gemini’s facility instruments now under development: GHOST, a high-throughput, high-spectral resolution (R~50-75,000) spectrograph with continuous coverage at 0.36-0.95 microns; and SCORPIO, an 8-channel optical/IR imager and spectrograph with simultaneous coverage from 0.38-2.5 microns. In addition, two new facility instruments are in their early design stages: GNAOI and IGRINS-2 (both tentative names). GNAOI will be a new infrared imager to accompany our new adaptive optics system and Gemini North while IGRINS-2 is an update of the successful visitor instrument, IGRINS, being built for Gemini by the Korea Astronomy and Space Science Institute. We will also describe our Visiting Instrument and instrument upgrade programs and opportunities for the community to engage with Gemini development efforts. Additionally, we will discuss our education and outreach in our local communities in Hawai‘i and Chile.

AEON: Progress in Networking Observatories and Tools for Follow-up in the ZTF/LSST Era

Sunday January 5, 2020:  5:30 pm-6:30 pm, Hawaiʻi Convention Center, Room 306 AB

We will present the first science results and technical achievements in the development of the Astrophysical Events Observatories Network (AEON). The initial AEON partner observatories are the Gemini, Las Cumbres, NOAO, and SOAR. We will discuss how observation requests for the SOAR 4.1m can now be programmatically submitted and queue-scheduled through the LCO network infrastructure, thanks to recent upgrades at both facilities, and how this enables a range of science. We will demonstrate the advantages offered by Target and Observation Manager systems (TOMs) in optimizing any observing program. LCO has developed the TOM Toolkit package to make it easy for astronomers to build a TOM for their own science, and we will update the community on the new functionality offered by the TOM Toolkit, including built-in interfaces for a number of observing facilities, brokers and data archives.

New science opportunities with the next generation Gemini North Adaptive Optics facility

Monday January 6, 2020:  9:30 am-11:30 am, Hawaiʻi Convention Center, Room 306 AB

As part of the “Gemini In The Era of Multi-Messenger Astronomy (GEMMA)” program, funded by a multi-million dollar award from the National Science Foundation, Gemini is designing a new queue-operated multi-conjugate adaptive optics (AO) facility for the 8-m Gemini-North telescope. By delivering an AO-corrected field-of-view of 2 arc minutes to feed the next generation of AO-assisted Gemini-North instruments, GNAO will enable a broad range of science cases. Please join us to learn about the GNAO project and future opportunities for scientific exploration with the GNAO facility.

Chair: Julia Scharwächter

9:30 Gaetano Sivo
      "GNAO - an MCAO system for the Gemini North Telescope"
9:50 Morten Andersen
      "Science cases for GNAO"
10:10 Jessica Lu
      "Understanding the Birth, Death, and Afterlife of Stars Using Astrometry"
10:30 John Blakeslee
      "Probing the Time Domain with GNAO"
10:50 Roberto Abraham
      "Science with the Gemini IR Multi-Object Spectrograph"
11:10 Michael Pierce
      "GNAO astrometry as it pertains to cosmological parallaxes"

Planets, exoplanets, and planet formation with Gemini Large and Long Programs

Tuesday January 7, 2020:  9:30 am-11:30 am, Hawaiʻi Convention Center, Room 303 B

This splinter session focuses on recent solar system and exoplanet science from the Gemini large and long program (LLP). Gemini large and long proposals can be submitted on any topic. However, recently a number of proposals have been on solar system and exoplanet astronomy. A variety of these programs will be reviewed in 20 minute talks during this session. The planned range of topics includes observations of planet formation, characterization of dusty, rocky, and icy debris in the solar system and in exoplanetary systems, and investigations of the structure of exoplanet atmospheres. The programs use a variety of Gemini instrumentation including GMOS, GPI, and AO imaging.

An Evening with the Maunakea Observatories

Tuesday January 7, 2020:  7:00 pm-9:00 pm, Hawaiʻi Convention Center, Room 323 A

Please join us for a panel discussion by the Directors of the Maunakea Observatories to discuss the present and future of astronomy on Maunakea.

List of Talks and Posters

Your contribution presents Gemini related work and it is not listed here? Please send details to


Sunday, 5 Jan


ID 1st author Title
175.23  J. Scharwächter  The next-generation Gemini North Multi-Conjugate Adaptive Optics Facility
105.05  A. Nitta  Search for DBVs with Gemini Observatory’s ‘Alopeke
175.22  G. Mace  IGRINS Returns to Gemini South
104.08  A. Grace  Place Based Education for Teaching Astronomy in Hawaiʻi
105.02  C. McDermott  The Dry Crust of a Rocky Planet Being Accreted by the White Dwarf SDSSJ073110.35+241704.2
110.05  C. Sneden  High-resolution Infrared Spectroscopy of Open Cluster NGC 752
111.03  O. Cooper  Lensing Masses of 8 Planck-selected Gravitationally Lensed Sub-millimeter Galaxies
170.21  C. Vides  Constraining the Orbital Period of SN2010da
174.01  T. Cook  Detecting transiting exoplanets with a low-cost robotic telescope system


ID Time 1st author Title
135.01 10:00-10:10am  T. Currie  TMT in the Community: Addressing Common Misconceptions and Seeking Common Ground
135.02 10:10-10:20am  L. E. Chu  TMT in the Community: Cultural and Educational Initiatives by the Thirty Meter Telescope
135.03 10:20-10:30am  J. K. Chu TMT in the Community: Investing in the Future of Hawai`i
135.07 11:00-11:10am  S. Durst  Astronomy from the Moon: Hawai'i 21st Century Astrophysics
130.08 11:10-11:20am  J. C. Mather  Ground-Space Partnership: ELTs with orbiting guidestars and orbiting starshades
161.04 2:40-3:00pm  A. Steele  Connecting circumstellar gas around white dwarfs to small bodies in the solar system
161.05 3:00-3:10pm  S. Silverberg  Four New Peter Pan Disk Candidates from Disk Detective

Monday, 6 Jan


ID 1st author Title
215.04  S. Margheim  The Gemini High-Resolution Optical Spectrograph
216.01  P. Kalas  HST/STIS coronagraphic imaging of newly resolved debris disks around young stars
217.01  G. C. Clayton  Dust Formation in the Type II Supernova, 2007oc


ID 1st author Title
280.02  E. L. Nielsen  The Gemini Planet Imager Exoplanet Survey: Giant Planet and Brown Dwarf Demographics from 10-100 AU
274.14  J. E. Andrews Spectra of Eta Car before the Great Eruption
204.16  K. Chiboucas  The Search for UCDs in the Coma Cluster
205.12  M. S. Thompson  “Metallicity Diagnostics of Galaxies in the CGM2 Survey”
207.38  D. Carr  Compaction in Action: Tracing the Formation and Evolution of Blue and Red Nuggets at Redshift Zero in the RESOLVE Survey
208.27  J. Antwi-Danso  Exploring the Formation of Massive Galaxies at 4 &lt z &lt 6 Using Novel K blue and K red Filters
214.02  M. Jeong  Chemodynamical Properties of Extremely Metal-Poor Stars
274.11  R. Siverd  Dynamical Masses and Radii of Eclipsing Giants Discovered by KELT
281.06  H. Leiendecker  Characterizing Structure in Protoplanetary Disks with Gaps
281.07  T. Dupuy  Which Binaries Foster Planet Formation and Survival?


ID Time 1st author Title
254.03 2:20-2:30pm  K. Ward-Duong  Gemini Planet Imager Spectroscopy of the Dusty Substellar Companion HD 206893 B
231.04 10:40-10:50am  R. A. Dupke  Shedding Light on the Age of Fossil Groups with the ICL
252.02 2:10-2:20pm  A. Shugart  Assembling the knowledge of best practices in diversity, equity, and inclusion to develop a structure for an astronomy organization
225.04 10:40-10:50am  J. Bean  Following up TESS's temperate terrestrials with MAROON-X
252.03 2:20-2:30pm  T. Spuck  Astronomy in Chile Educator Ambassadors Program
256.08 3:20-3:30pm  S. T. Douglas  The impact of companions on the rotation of Praesepe early M dwarfs

Tuesday, 7 Jan


ID 1st author Title
381.06 B. Matthews  Gemini Near Infrared Spectrograph Distant Quasar Survey: Initial Results
314.02  T. Pyo  Extended H2 and [Fe II] emission structure around VV CrA binary system
377.08  W. M. Best  Probing the Low-Mass End of the Initial Mass Function with an HST DASH Survey of Star-Forming Regions
381.05  D. M. Crenshaw  Feeding and Feedback on Nuclear and Galactic Scales in the Seyfert 2 Galaxy Mrk 3


ID 1st author Title
307.10 S. Coffin  Optical Identification and Spectroscopy of Supernova Remnants in M51
308.08.   Y. Ma  Potential Influence of Stellar Flybys on the Morphology of Debris Disks in the Scorpius-Centaurus Association
308.15  S. Wolff  The Peculiar Morphology of the Gas-rich Circumstellar Disk Wray 15-788
308.21  J. Patience  A Survey for Resolved Debris Disks in Sco-Cen
310.06  T. R. Geballe  Warm diffuse outflowing gas in the Galactic center revealed by spectroscopy of H3+
371.07  M. Hussaini  The First IFU Spectroscopic View of Shocked Cluster Galaxies


ID Time 1st author Title
325.07 11:10-11:20am J. P. Madrid  Optical study of PKS B1322-110, the intra-hour variable radio source
322.01 10:00-10:10am  J. K. Chu  Probing the ISM of Dusty, Luminous Infrared Galaxies at Cosmic Noon
326.07 11:10-11:20am  A. Rest  The historic light curve of Eta Car from light echoes
352.04 2:30-2:40pm  J. Vos  Young L Dwarf Variability in the Mid-IR

Gemini Observatory Open House

Wednesday, 8 Jan


ID 1st author Title


ID Time 1st author Title
437.06 2:50-3:00pm  A. J. van der Horst  Probing the Transient Sky with SCORPIO on Gemini
415.04 10:40-10:50am  M. Andersen  Reaching the low-mass content in Young Massive Star Clusters Using Multi Conjugate Adaptive Optics


Your contribution presents Gemini related work and it is not listed here? Please send details to