Results 101 to 110 of about 902 (203)

The Extreme Activity in Comet Hale–Bopp (C/1995 O1): Investigations of Extensive Narrowband Photoelectric Photometry

The Planetary Science Journal
Conventional narrowband photoelectric photometry of Comet Hale–Bopp (1995 O1) was obtained on 99 nights from mid-1995 to early-2000, yielding gas and dust production rates over an unprecedented range of time and distance. The appearance of Hale–Bopp (H-B)
David G. Schleicher, Peter V. Birch, Tony L. Farnham, Allison N. Bair   +3 more
doaj   +1 more source

The Primary Volatile Composition of Comet C/2015 ER61 (PANSTARRS)

, 2020
In the outer edges of the solar system exist two regions: the Kuiper belt and Oort cloud. These two regions have a high amount of icy bodies (comets) orbiting the Sun.
Butler, Aaron
core  

EPOXI at Comet Hartley 2

, 2011
International audienceUnderstanding how comets work-what drives their activity-is crucial to the use of comets in studying the early solar system. EPOXI (Extrasolar Planet Observation and Deep Impact Extended Investigation) flew past comet 103P/Hartley 2,
W. A. Delamere, Thomas, Peter C., Williams, Jade L., A'Hearn, Michael F., Carcich, Brian T., J.-Y. Li, J. E. Richardson, Hermalyn, Brendan, Kissel, Jochen, L. A. McFadden, M. S. Kelley, P. H. Schultz, F. Merlin, Yeomans, Donald K., T. L. Farnham, Hampton, Donald, Groussin, Olivier, B. Hermalyn, K. P. Klaasen, T. J. Bowling, S. M. Collins, D. J. Lindler, McLaughlin, Stephanie A., O. Groussin, K. J. Meech, Merlin, Frederic, Melosh, H. Jay, C. M. Lisse, Feaga, Lori M., L. M. Feaga, Collins, Steven M., Farnham, Tony L., D. Bodewits, Richardson, James E., M. J. S. Belton, B. T. Carcich, Besse, Sebastien, Bodewits, Dennis, J. Veverka, S. A. McLaughlin, D. K. Yeomans, D. Hampton, Veverka, Joseph, S. Besse, Wellnitz, Dennis D., Lisse, Carey M., Lindler, Don J., J. L. Williams, S. Protopapa, J. M. Sunshine, D. D. Wellnitz, Belton, Michael J. S., P. C. Thomas, Kelley, Michael S., Sunshine, Jessica M., Li, Jian-Yang, Delamere, W. Alan, Protopapa, Silvia, Schultz, Peter H., M. F. A'Hearn, McFadden, Lucy A., Bowling, Timothy J., H. J. Melosh, Klaasen, Kenneth P., Meech, Karen J., J. Kissel   +65 more
core   +1 more source

Thermal Evolution of the Nucleus of the Comet 67P for 120 Years: Numerical Simulations

Open Astronomy, 2018
The purpose of this paper is to estimate to what temperatures and to what depth the outer layers of the cometary nuclei are heated for several dozen revolutions around the Sun, and what changes in the composition of the volatiles occur in this case. This
Rusol Andrey V., Dorofeeva Vera A.
doaj   +1 more source

Explosion of Comet 17P/Holmes as revealed by the Spitzer Space Telescope

, 2010
51 pages. Some figures compressed (see real journal for full quality). Published in Icarus (http://icarus.cornell.edu/journal/).International audienceAn explosion on comet 17P/Holmes occurred on 2007 Oct 23, projecting particulate debris of a wide range ...
Lisse, Carey M., Vaubaillon, Jeremie, Holloway, Mikel, Rho, Jeonghee, Reach, William T.   +4 more
core   +1 more source

Inferring the CO2 Abundance in Comet 45P/Honda-Mrkos-Pajdušáková from [O i] Observations: Implications for the Source of Icy Grains in Cometary Comae

The Planetary Science Journal
The study of cometary composition is important for understanding our solar system's early evolutionary processes. Carbon dioxide (CO _2 ) is a common hypervolatile in comets that can drive activity but is more difficult to study than other hypervolatiles
Mikayla R. Huffman, Adam J. McKay, Anita L. Cochran   +2 more
doaj   +1 more source

The Pre-perihelion Evolution of the Activity of Comet C/2017 K2 (Pan-STARRS) during the Water Ice-line Crossover

The Astronomical Journal
Comets, relics from the early solar system, consist of dust and ice. The ice sublimates as comets approach the Sun, ejecting dust from their nuclei seen as activity.
Yuna G. Kwon, Stefano Bagnulo, Johannes Markkanen, Ludmilla Kolokolova, Jessica Agarwal, Manuela Lippi, Zuri Gray   +6 more
doaj   +1 more source

JWST Detection of a Carbon-dioxide-dominated Gas Coma Surrounding Interstellar Object 3I/ATLAS

The Astrophysical Journal Letters
3I/ATLAS is the third confirmed interstellar object to visit our solar system and only the second to display a clear coma. Infrared spectroscopy with the James Webb Space Telescope (JWST) provides the opportunity to measure its coma composition and ...
Martin A. Cordiner, Nathan X. Roth, Michael S. P. Kelley, Dennis Bodewits, Steven B. Charnley, Maria N. Drozdovskaya, Davide Farnocchia, Marco Micheli, Stefanie N. Milam, Cyrielle Opitom, Megan E. Schwamb, Cristina A. Thomas, Stefano Bagnulo   +12 more
doaj   +1 more source

Early CN Outgassing and Production Rates of C/2024 E1 (Wierzchos) at 4 au

The Planetary Science Journal
The study of cometary activity at large heliocentric distances provides insights into the volatile release processes in the outer solar system. Early models predicted cometary activity was driven primarily by sublimation of water and therefore would ...
A. C. Mura, F. La Forgia, M. Lazzarin, G. Cremonese, P. Cambianica, G. Munaretto, A. Farina, F. Cusano, E. Marini   +8 more
doaj   +1 more source

Spectroscopic identification of water emission from a main-belt comet. [PDF]

Nature, 2023
Kelley MSP, Hsieh HH, Bodewits D, Saki M, Villanueva GL, Milam SN, Hammel HB.   +6 more
europepmc   +1 more source