Results 31 to 40 of about 8,239 (171)

Probing the Evolutionary History of Comets: An Investigation of the Hypervolatiles CO, CH4, and C2H6 in the Jupiter-family Comet 21P/Giacobini–Zinner

Astronomical Journal, 2020
Understanding the cosmogonic record encoded in the parent volatiles stored in cometary nuclei requires investigating whether evolution (thermal or otherwise) has modified the composition of short-period comets during successive perihelion passages.
N. Roth, E. Gibb, B. Bonev, M. DiSanti, N. Russo, A. McKay, R. Vervack, H. Kawakita, M. Saki, N. Biver, D. Bockelée-Morvan, L. Feaga, N. Fougere, A. Cochran, M. Combi, Y. Shou   +15 more
semanticscholar   +1 more source

The Relationship between Centaurs and Jupiter Family Comets with Implications for K-Pg-type Impacts [PDF]

Monthly notices of the Royal Astronomical Society, 2019
Centaurs—icy bodies orbiting beyond Jupiter and interior to Neptune—are believed to be dynamically related to Jupiter Family Comets (JFCs), which have aphelia near Jupiter's orbit, and perihelia in the inner Solar System. Previous dynamical simulations
K. Grazier, J. Horner, J. Castillo‐Rogez   +2 more
semanticscholar   +1 more source

The Contribution of Dwarf Planets to the Origin of Jupiter Family Comets [PDF]

Astronomical Journal, 2019
We explore the long-term evolution of a bias-free orbital representation of the cometary nuclei (with diameters above 2 km) of the Kuiper Belt, using the so-called L7 synthetic model from CFEPS, which consists of three dynamical subpopulations: the ...
M. Muñoz-Gutiérrez, A. Peimbert, B. Pichardo, M. Lehner, S. Wang   +4 more
semanticscholar   +1 more source

2006 Fragmentation of Comet 73P/Schwassmann-Wachmann 3B Observed with Subaru/Suprime-Cam

, 2009
We analyzed the Subaru/Suprime-Cam images of 73P/Schwassmann-Wachmann 3B and detected no fewer than 154 mini-comets. We applied synchrone-syndyne analysis, modified for rocket effect analysis, to the mini-fragment spatial distribution. We found that most
Ishiguro, Masateru, Sarugaku, Yuki, Ueno, Munetaka, Usui, Fumihiko   +3 more
core   +1 more source

Analyzing the Onset of Cometary Activity by the Jupiter-family Comet 2023 RN3

Astronomical Journal
We utilize serendipitous observations from the Asteroid Terrestrial-impact Last Alert System (ATLAS) and the Zwicky Transient Facility in addition to targeted follow-up observations from the Las Cumbres Observatory (LCO) and Liverpool Telescope to ...
M. Dobson, M. Schwamb, A. Fitzsimmons, Michael S. P. Kelley, Carrie E. Holt, Joseph Murtagh, Henry H. Hsieh, L. Denneau, N. Erasmus, A. Heinze, L. Shingles, R. Siverd, Ken W. Smith, J. Tonry, H. Weiland, David. R. Young, Tim A. Lister, E. Gomez, Joseph P. Chatelain, S. Greenstreet   +19 more
semanticscholar   +1 more source

Activity Discovered on Mars-Crossing Jupiter Family Comet 2018 OR by Citizen Scientists

Research Notes of the AAS
We present the discovery of cometary activity on 2018 OR as part of our Active Asteroids project, a NASA Partner Program fueled by Zooniverse Citizen Scientists.
Kennedy A. Farrell, C. O. Chandler, W. J. Oldroyd, C. Trujillo, W. A. Burris, Henry H. Hsieh, J. Kueny, Jarod A. DeSpain, Mark Jesus Mendoza Magbanua, N. Sedaghat, S. Sheppard, M. Mazzucato, Milton K. D. Bosch, Tiffany Shaw-Diaz, V. Gonano, Al Lamperti, J. A. da Silva Campos, Brian L. Goodwin, I. Terentev, Charles J. A. Dukes   +19 more
semanticscholar   +1 more source

New Jupiter and Saturn Satellites Reveal New Moon Dynamical Families

Research Notes of the AAS, 2023
Tens of new moons around both Jupiter and Saturn have been announced on Minor Planet Electronic Circulars (MPECs) in late 2022 and early 2023. Jupiter now has 95 and Saturn 146 confirmed moons.
S. Sheppard, D. Tholen, M. Alexandersen, C. Trujillo   +3 more
semanticscholar   +1 more source

The Martyrdom of Nadezhda Kurchenko: Soviet Hero Cults and the Spiritual Turn in Late Socialism

The Russian Review, EarlyView.
Abstract This article argues that the spiritual turn in Soviet atheism under Brezhnev provided a meaningful solution to the problems of producing heroes when self‐sacrificing martyrs were losing their appeal. To support this claim, I examine the story of Nadezhda Kurchenko, a nineteen‐year‐old flight attendant killed by two hijackers on an Aeroflot ...
Steven E. Harris
wiley   +1 more source

Discovery of Jupiter Family Comet 2011 UG104 Through AI Enhanced Citizen Science

Research Notes of the AAS
We report the discovery of cometary activity from minor planet 2011 UG104, which we classify as a Jupiter Family Comet (JFC). This discovery was aided by our Artificial Intelligence (AI) classification system: TailNet.
Jarod A. DeSpain, C. O. Chandler, N. Sedaghat, W. J. Oldroyd, C. Trujillo, W. A. Burris, Henry H. Hsieh, J. Kueny, Kennedy A. Farrell, M. Magbanua, S. Sheppard, M. Mazzucato, Milton K. D. Bosch, Tiffany Shaw-Diaz, V. Gonano, Al Lamperti, J. A. da Silva Campos, Brian L. Goodwin, I. Terentev, Charles J. A. Dukes   +19 more
semanticscholar   +1 more source

Rotation of cometary nuclei: new light curves and an update of the ensemble properties of Jupiter-family comets [PDF]

, 2017
We report new lightcurves and phase functions for nine Jupiter-family comets (JFCs). They were observed in the period 2004-2015 with various ground telescopes as part of the Survey of Ensemble Physical Properties of Cometary Nuclei (SEPPCoN) as well as ...
R. Kokotanekova, C. Snodgrass, P. Lacerda, S. Green, S. Lowry, Y. Fernández, C. Tubiana, A. Fitzsimmons, H. Hsieh, H. Hsieh   +9 more
semanticscholar   +1 more source