Papers by Henry Throop


Main research page

Papers and latest results!

Use ADS for a complete list including abstracts.  I'm the only Throop astronomer last time I checked, but do watch out for papers by my sister H. Throop regarding plants and the carbon cycle.

2015 Science: The Pluto system: Initial results from its exploration by New Horizons, Stern et al.
2014
 Icarus: Limits on Pluto's Ring System from the Jun 12 2006 Stellar Occultation and Implications for the New Horizons Impact Hazard, Throop et al. (PDF).
2012
 ApJ: UV Variability in Dense Star Clusters, Throop, in prep.
2011
 Icarus: Rosetta-Alice Observations of Exospheric Hydrogen and Oxygen on Mars, Feldman et al.
2011
 MNRAS: Effect of Different Stellar Galactic Environments on Planetary Discs I: The Solar Neighbourhood and the Birth Cloud of the Sun, Jimenez-Torres et al. (PDF)
2011
 Icarus: UV Photolysis, Organic Molecules in Young Disks, and the Formation of the Meteoritic Amino Acids, Throop (PDF)
2010
 Planetary & Space Science: In-flight Calibration of the Cassini Imaging Science Sub-system Cameras, West et al. (PDF)
2010
 Icarus: The Far-Ultraviolet Albedo of Steins Measured with Rosetta-ALICE, A'Hearn et al.
2010
 Icarus: Accretion of Jupiter's Atmosphere from a Supernova-Contaminated Star Cluster, Throop & Bally (PDF)
2010 Icarus: New Horizons Alice UV Observations of a Stellar Occultation by Jupiter's Atmosphere, Greathouse et al.
2009 ApJ: Bondi-Hoyle-Lyttleton accretion onto a protoplanetary disk, Moeckel & Throop (PDF)
2008 AJ: Tail-End Bondi-Hoyle Accretion in Young Star Clusters: Implications for Disks, Planets, and Stars, Throop & Bally (PDF)
2008 AJ: Simulations of the Dynamical and Light-Scattering Behavior of Saturn's Rings and the Derivation of Ring Particle and Disk Properties, Porco et al. (PDF)
2008 Space Science Reviews: Ralph: A Visible/Infrared Imager for the New Horizons Pluto/Kuiper Belt Mission, Reuter et al. (PDF)
2007 Science: Io’s Atmospheric Response to Eclipse: UV Aurorae Observations, Retherford et al. (PDF)
2007 Science: New Horizons Mapping of Europa and Ganymede, Grundy et al. (PDF)
2007 Science: Clump Detections and Limits on Moons in Jupiter’s Ring System, Showalter et al (PDF)
2007 Science: Jupiter’s Nightside Airglow and Aurora, Gladstone et al. (PDF)
2007 Science: Polar Lightning and Decadal-Scale Cloud Variability on Jupiter, Baines et al (PDF)
2005 ASP Conf Proc: Evolution of UV-Irradiated Protoplanetary Disks, Bally et al.
2005 ApJ: Phase Light Curves for Extrasolar Jupiters and Saturns, Dyudina et al. (PDF)
2005 ApJ: Can Photo-evaporation Trigger Planetesimal Formation?, Throop & Bally (PDF)
2004 Cambridge Jupiter book: Jupiter's ring-moon system, Burns et al.
2004 Icarus: The Jovian rings: new results derived from Cassini, Galileo, Voyager, and Earth-based observations, Throop et al. (PDF)
2004 Icarus: The size distribution of Jupiter's main ring from Galileo imaging and spectroscopy, Brooks et al. (PDF)
2003 Science: Cassini Imaging of Jupiter's Atmosphere, Satellites, and Rings, Porco et al.
2003 ApJ: Evidence for Grain Growth in the Protostellar Disks of Orion, Shuping et al. (PDF)
2001 ApJ: The Star Formation History of Trumpler 14 and Trumpler 16, DeGioia-Eastwood et al. (PDF)
2001 Science: Large Dust Grains in Young Circumstellar Disks, Throop et al. (PDF)
2000 PhD thesis, Light Scattering and Evolution of Protoplanetary Disks and Planetary Rings (PDF)
1998 Icarus: G Ring Particle Sizes Derived from Ring Plane Crossing Observations, Throop & Esposito (PDF)

Archived talks!

This list includes both seminars, and education / outreach talks. In India and Africa, the majority of my talks have been the latter.

October 2017 One Sky: Astronomy Outreach Across the Developing World (PDF, 45 MB)
I was given the Carl Sagan Medal for Excellence in Public Communication in Planetary Science for my outreach work in astronomy. I'm really lucky to have been able to live around the world and talk astronomy to so many people! As part of the award, I gave a public talk on the campus of Brigham Young University, where the medal was awarded by the American Astronomical Society's Division for Planetary Science (AAS-DPS).
2016-2017 Too many talks to list individually! I've given 100+ talks across Africa and India, and I'll keep doing so as long as people keep coming. It's been really fantastic to get to talk with so many diverse groups across the world.
June 2016 Physical Research Laboratory, Ahmedabad, India
April 2016 Cathedral and John Connon School, Mumbai, India
April 2016 American School of Bombay, Mumbai, India
March 2016 Kritika / Tinkerers' Lab, Indian Institute of Technology Bombay, Mumbai, India
February 2016 Footprints X6 Conference, MS University, Vadodara, India (PDF, 38 MB) (photos!)
February 2016 Astronomy @ Taj Workshop and Winter School, Agra, India (photos!)
January 2016 Pokhara Astronomical Society / American Corner, Pokhara, Nepal
January 2016 'Professor X Lecture', St. Xavier's College, Mumbai, India
January 2016 US Consulate, Mumbai, India
November 2015 NES High School, Mumbai, India
November 2015 EHI STEM Symposium, New Delhi, India
November 2015 Homi Bhabha Center for Science Education, Mumbai, India
November 2015

DPS meeting, National Harbor, MD / DC
Astronomy Education and Outreach in South Africa (PDF, 7 MB)
New Rotationally Resolved Spectra of Pluto-Charon from 300-900 nm (PDF, 12 MB)
Photos from Inside Pluto: Historic Images from the New Horizons Encounter with Pluto (PDF, 14 MB)
October 2015 American Consulate / American Center, Kolkata, India
October 2015 Presidency University, Kolkata, India
October 2015 St. Xavier's University, Kolkata, India
September 2015 Witty International School, Mumbai, India
September 2015 Tata Institute for Fundamental Research, Mumbai, India
August 2015 Nehru Science Center, Mumbai, India
May 2015 Dendron Senior Secondary, Limpopo, South Africa (two days of talks and workshops - photos!)
May 2015 Namibia Scientific Society, Windhoek, Namibia
May 2015 South African Association for the Advancement of Science (S2A3), Pretoria, South Africa.
May 2015 US Embassy, Pretoria, South Africa
April 2015 Astronomical Society of South Africa, Johannesburg
April 2015 Living Maths, Cape Town, South Africa
March 2015 LPSC Meeting, Woodlands, TX.
Experimental Measurement of Sub-micron Ejecta from Hypervelocity Impact into Meteorites (PDF, 9 MB)
January 2015

Hartebeesthoek Radio Astronomy Observatory (HartRAO), Gauteng, South Africa
Planet Formation in Dense Star Clusters

December 2014 Madikweng Senior Secondary, Limpopo, South Africa (full day and night of talks and workshops)
October 2014
 NASA-South Africa Joint Asteroids Workshop, Cape Town
September 2014
 South African Association for the Advancement of Science (S2A3), Pretoria, South Africa.
September 2014
 ScopeX, Johannesburg. Observations of Near-Earth Asteroids and the Impact Hazard to Earth (PDF talk, 13 MB)
September 2014
 UP with Science, Sci-Enza, Pretoria.
August 2014
 Wits University, Mareng Center for Science Education, Johannesburg. NASA's New Horizons Mission to Pluto.
July 2014
 South African Institute of Physics (SAIP), Johannesburg. Characterization of Potentially Hazardous Near-Earth Asteroids.
June 2014
 Astronomical Society of South Africa, Johannesburg
June 2014
 South African National Space Agency (SANSA), Hermanus, South Africa (two talks)
May 2014
 Ponelopele Oracle School, Midrand, South Africa
May 2014
 North-West University, Potchefstroom, South Africa. NASA's New Horizons Mission to Pluto (PDF talk, 33 MB)
April 2014
 Sci-Bono Discovery Center, Johannesburg. NASA's New Horizons Mission to Pluto
April 2014
 Wits University, Johannesburg, South Africa. Planet Formation in Dense Star Clusters
April 2014
 South African Association for the Advancement of Science (S2A3), Pretoria, South Africa.
April 2014
 NASA Space Apps Challenge, Innovation Hub, Pretoria, South Africa
March 2014
 LPSC, Houston. Hypervelocity Laboratory Impacts of Micron-sized Dust into Meteoritic and Foil Targets (PDF poster, 2 MB)
March 2014
 SciFest Africa, Grahamstown, South Africa (five talks)
March 2014
 NASA-South Africa Joint Asteroids Workshop, Cape Town
February 2014
 SNSEt Youth Innovation Indaba, Klerksdorp, South Africa
November 2013
 Astronomical Society of South Africa, Pretoria
November 2013
 Astronomical Society of South Africa, Johannesburg
October 2013
 Madikweng Senior Secondary, Limpopo, South Africa (highly recommended photos!)
September 2013
 South African Astronomical Observatory (SAAO), Cape Town.
August 2013
 Wits University, Johannesburg, South Africa. The New Horizons Mission to Pluto (PDF talk, 35 MB)
August 2013
 Wits University, Johannesburg, South Africa [talk for high school Model UN meeting]: Space Policy for Africa
July 2013
 Pluto Science Conference, APL, MD: Limits on Pluto’s Ring System from the June 12 2006 Stellar Occultation
May 2013
 South African National Space Agency (SANSA), Hartebeesthoek, South Africa - Take Your Daughter to Work Day
April 2013
 Astronomical Society of South Africa, Pretoria
April 2013
 South African Association for the Advancement of Science (S2A3), Pretoria, South Africa.
April 2013
 South African National Space Agency (SANSA), Hartebeesthoek, South Africa
March 2013
University of Botswana, Gaborone
 Planet Formation in Dense Star Clusters

NASA's New Horizons Mission to Pluto, and its Relation to the SKA and African Astronomy
March 2013
SciFest Africa, Grahamstown, South Africa NASA's New Horizons Mission to Pluto (PDF talk, 22MB)

An Introduction to Astrobiology (PDF talk, 10 MB)

Build a Comet! (PDF talk, 4 MB)
February 2013
 University of Pretoria, South Africa, 'UP With Science': The New Horizons Mission to Pluto
January 2013
 Mae Jemison Library, Mamelodi, South Africa: The New Horizons Mission to Pluto
(and other talks at same venue)
January 2013
 OPAG Meeting, Atlanta: CDAPS Program Update (PDF talk, 1 MB)
May 2012
 DDA Meeting, Mt. Hood, Oregon: Time Variability of Photo-evaporation in Protoplanetary Disks (PDF talk, 3 MB; Keynote talk, 19 MB)
DDA Meeting, Mt. Hood, Oregon: Origins Program Update (PDF talk, 1 MB)
February 2012
 Cosmos Club / Geological Society of Washington: NASA's New Horizons Mission to the Planet Pluto (PDF, 26 MB)
October 2011
 DPS Nantes, France: Limits on Pluto’s Ring System from the June 12 2006 Stellar Occultation (PDF abstract, 1 MB; PDF talk, 2 MB; Keynote talk, 90 MB with cool movies)
June 2011
 Planetary Science Institute, Tucson: Planet Formation in Dense Star Clusters
February 2011
 University of Virginia / NRAO: Planet Formation in Dense Star Clusters
January 2011
 Carnegie Institute / Department of Terrestrial Magnetism: Planet Formation in Dense Star Clusters
October 2010
 Oklahoma-Texas Star Party talk #2: Pluto and New Horizons: Mission Update
October 2010
 Oklahoma-Texas Star Party talk #1: Star and Planet Formation
October 2010
 DPS Pasadena: Time-Variable Photo-Evaporation of Protoplanetary Disks (PDF, 2 MB)
March 2010
 LPSC meeting: Formation of Jupiter's Atmosphere from a Supernova-Contaminated Molecular Cloud (PDF abstract, 1 MB; PDF talk 2 MB)
December 2009
 Southwest Research Institute, Boulder: Planet Formation in Dense Star Clusters (PDF, 7 MB)
November 2009
 University of Colorado, Boulder: Planet Formation in Dense Star Clusters (PDF, 6 MB)
October 2009
 University of Guanajuato, Mexico: Planet Formation in Dense Star Clusters (PDF, 3 MB)
October 2009
 Poster at DPS Puerto Rico: Introducing GV: A Geometry Visualizer for Spacecraft and Ground-Based Observations (PDF, 3 MB)
March 2009 Festival de Mexico (Internacional Ano de Astronomia), Centro Cultural Universitario Tlatelolco, Mexico City
March 2009 LPSC meeting: UV Photolysis and Organic Molecules in the Solar Nebula (PDF abstract, 1 MB; PDF poster, 1 MB)
February 2009 Instituto Politecnico Nacional / CECyT 3, Mexico
January 2009 UNAM, Morelia, Mexico: Planet Formation in Dense Star Clusters
December 2008 Biblioteca Benjamin Franklin, Mexico City: La mision New Horizons a Pluton, el Cinturon de Kuiper, y mas alla (PDF, 16 MB)
October 2008 Poster at Spitzer 'New Light on Circumstellar Disks' conference: Accretion onto Young Disks (PDF, 3 MB)
October 2008 DPS Ithaca: Accretion of Jupiter's Atmosphere from a Supernova-contaminated Star Cluster (PDF, 3 MB)
October 2008 ITT-VIS, Boulder, about the New Horizons Geometry Visualizer, winner of IDL 2008 'Application of the Year' (PDF, 4 MB)
August 2008 Mexican Star Formation Workshop, Mexico City
June 2008 National Autonomous University of Mexico (UNAM), Mexico City: Environmental Hazards of Star Formation (PDF, 3 MB)
May 2008 Mexican Astrobiology Society conference, Mexico City
April 2008 DDA meeting, Boulder, CO (PDF, 2 MB)
March 2008 NASA-Goddard, Greenbelt, MD
October 2007 DPS talk: Accretion Onto Young Circumstellar Disks
October 2007 Oklahoma-Texas Star Party talk #2: Pluto and New Horizons (PDF, 66 MB!)
October 2007 Oklahoma-Texas Star Party talk #1: Star Formation (PDF, 8 MB)
September 2007 University of Maryland, College Park
June 2007 Poster at Extreme Solar Systems conference, Santorini, Greece (PDF, 3 MB)  
  [NB: An excellent example of how not to do a poster!]
April 2007
 JILA, University of Colorado, Boulder, CO
September 2006 Physics of Circumstellar Disks conference, Portugal: Dense Star Clusters: Hazard or Haven? (PDF, 4 MB)
May 2006 Little Thompson Observatory: The Orion Nebula (PDF, 9 MB)
January 2006 Florida Institute of Technology: The New Horizons Mission to Pluto
September 2005 New Mexico State University, Las Cruces (PDF, 8 MB)
June 2005 Observatoire de Nice, France
June 2005 Physics of Dusty Rings workshop, Berne, Switzerland: Cassini Observations of the Jovian Ring (PDF, 2 MB)
April 2005 NASA Astrobiology Science Conference, Boulder
February 2005 Aspen Extrasolar Planets Conference: Rapid Formation of Planetesimals (PDF, 2 MB)  
  [NB: A great example of how not to do a talk -- though the skiing was memorable...]
December 2004 AGU Poster: Creation of Pre-Biotic Organic Molecules in Young Circumstellar Disks (PDF, 2 MB)
  [H. Throop and H. Throop both attended this meeting -- a scientific first!]
November 2004 DPS talk: Can Photo-evaporation Trigger Planetesimal Formation? (PDF)
October 2003 DPS talk: Cassini imaging observations of Jupiter's rings
October 2002 DPS talk: New Results on Particle Properties and Evolution of the Jovian Main Ring
December 2001 DPS talk: Light Scattering in Saturn's Rings: Basic Disk Properties and the A Ring Azimuthal Asymmetry (PDF)
December 2001

DPS talk: Cassini Observations of Jupiter's Rings (PDF)

June 2001 Boulder Jupiter meeting: Cassini observations of Jupiter's Rings (PDF)
April 2001 Grinnell College: Planetary Rings and the Cassini Mission to Saturn (PDF, 2 MB)
April 2001 Grinnell College: Disk-Mania and the Formation of Planets (PDF, 3 MB)
April 2001 NASA Astrobiology Science Conference, DC
October 2000 DPS talk (PDF)
October 2000 Steward Observatory, Tucson (PDF)
July 2000 NASA-Ames, Moffatt Field (PDF)
May 2000 PhD thesis talk (gzip'd postscript, 2.6 MB)
January 2000 AAS talk: Large Grains in Young Circumstellar Disks (PDF)
October 1999 DPS talk: Sandcastles in the Wind: Particle Growth in Externally Illuminated Young Circumstellar Disks (PS)
October 1998 DPS talk: Large Particles in Young Circumstellar discs
October 1997 DPS talk: G Ring Particle Sizes Derived From Ring Plane Crossing Observations
October 1997
 Ring Plane Crossing Workshop, Wellesley College: Particle Sizes in Saturn's G Ring
October 1996 DPS poster: Particle Sizes in Saturn's G Ring


Book reviews

2003 Astronomy: Solar System Voyage (Serge Brunier, Cambridge University Press)
2003 Astrobiology: Evolution of Planet Earth: The Impact of the Physical Environment (ed. Lister & Rothschild, Academic Press)
2003 Astronomy: The Measure of All Things - The Seven-Year Odyssey and Hidden Error that Transformed the World (Ken Adler, Free Press)
  NB: A great book about the French surveyors who defined and then measured the length of the meter, measuring by hand the size of the Earth.

Henry Throop / henry.throop (at) gmail.com

Last modified 7-Nov-2017