Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Joel Wm. Parker"'
Autor:
John W. Noonan, Joel Wm. Parker, Walter M. Harris, Steven Bromley, Mohammad Saki, Youssef Moulane, Davide Farnocchia, Marco Micheli, Jian-Yang Li, Kathleen E. Mandt, Kumar Venkataramani, Dennis Bodewits
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 4, p 73 (2023)
Jupiter-family comets are ephemeral small bodies injected into the inner solar system from the Kuiper Belt, doomed to either sublimate all their volatiles and become inert or violently shatter from the activity. We investigate two target candidates o
Externí odkaz:
https://doaj.org/article/65a60d9eae8348609b1b6a7d94380db2
Autor:
John W. Noonan, Walter M. Harris, Steven Bromley, Davide Farnocchia, Jian-Yang Li, Kathleen E. Mandt, Joel Wm. Parker, Kumar Venkataramani, Dennis Bodewits
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 2, p 40 (2023)
Externí odkaz:
https://doaj.org/article/a07408c4214b4a83be11441448ff080a
Autor:
Arnaud Beth, Anders Eriksson, Paul D. Feldman, Martin Rubin, Y.-C. Cheng, Joel Wm. Parker, D. Bockelée-Morvan, Fredrik Johansson, Marina Galand, James L. Burch, Nicolas Biver, P. Stephenson
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 647, pp.A119. ⟨10.1051/0004-6361/202039155⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 647, pp.A119. ⟨10.1051/0004-6361/202039155⟩
Aims. We aim to determine whether dissociative excitation of cometary neutrals by electron impact is the major source of far-ultraviolet (FUV) emissions at comet 67P/Churyumov-Gerasimenko in the southern hemisphere at large heliocentric distances, bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81201ed7607e671779f2cc021d9f390f
https://hal.archives-ouvertes.fr/hal-03428276/file/Stephenson-aa39155-20.pdf
https://hal.archives-ouvertes.fr/hal-03428276/file/Stephenson-aa39155-20.pdf
Autor:
Joel Wm. Parker, Nathaniel J. Cunningham, Anne J. Verbiscer, Brian A. Keeney, New Horizons Team, S. Alan Stern
We present the first measurements of Charon's far-ultraviolet surface reflectance, obtained by the Alice spectrograph on New Horizons. We find no measurable flux shortward of 1650 A, and Charon's geometric albedo is $
Comment: Accepted for publi
Comment: Accepted for publi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35ab593113a59650376062894fed392c
Autor:
G. Randall Gladstone, Carey M. Lisse, Leslie A. Young, Joel Wm. Parker, Kelsi N. Singer, John R. Spencer, Harold A. Weaver, S. Alan Stern
Publikováno v:
The Planetary Science Journal. 3:111
During the New Horizons flyby of Kuiper Belt object (486958) Arrokoth on 2019 January 1, a search was made for escaping volatiles. Using the Alice spectrograph, appulse observations of both the Sun and the star HD42954 were performed to look for sign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff28e3240ec18d2851281c54ad121b48
https://doi.org/10.3847/psj/ac6098
https://doi.org/10.3847/psj/ac6098
Autor:
Jian-Yang Li, Joel Wm. Parker, Davide Farnocchia, Kathleen Mandt, Walter M. Harris, Paul D. Feldman, Michele T. Bannister, Zexi Xing, John Noonan, Dennis Bodewits
We will present the results of coordinated observations of 2I/Borisov with the Neil Gehrels-Swift observatory (Swift) and Hubble Space Telescope (HST), which allowed us to provide the first glimpse into the ice content and chemical composition of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::852463cb2e966631f06fcdfdfdfc95b0
https://doi.org/10.5194/epsc2020-993
https://doi.org/10.5194/epsc2020-993
Autor:
Catherine B. Olkin, Dale P. Cruikshank, Simon B. Porter, Orkan M. Umurhan, Allen Lunsford, Silvia Protopapa, M. Ruaud, James Tuttle Keane, A. F. Cheng, Alex Parker, Mihaly Horanyi, Eric Quirico, Mark R. Showalter, Jeffrey M. Moore, D. E. Jennings, G. R. Gladstone, Francesca Scipioni, Bernard Schmitt, Amanda M. Zangari, Matthew E. Hill, Carly Howett, Ralph L. McNutt, S. A. Stern, John R. Spencer, William B. McKinnon, Marc W. Buie, L. Gabasova, Paul M. Schenk, D. C. Reuter, Kelsi N. Singer, G. Weigle, Anne J. Verbiscer, Joel Wm. Parker, Daniel T. Britt, Michael K. Bird, David J. McComas, H. A. Weaver, Leslie A. Young, H. A. Elliott, A. M. Earle, Yvonne J. Pendleton, Richard P. Binzel, Jason C. Cook, Ivan Linscott, William M. Grundy, Sebastiaan Krijt, C. M. Dalle Ore, Bonnie J. Buratti, Jj Kavelaars
Publikováno v:
Science
Science, American Association for the Advancement of Science, 2020, 367 (6481), pp.eaay3705. ⟨10.1126/science.aay3705⟩
arXiv
Science, American Association for the Advancement of Science, 2020, 367 (6481), pp.eaay3705. ⟨10.1126/science.aay3705⟩
arXiv
The outer Solar System object (486958) Arrokoth (provisional designation 2014 MU69) has been largely undisturbed since its formation. We studied its surface composition using data collected by the New Horizons spacecraft. Methanol ice is present alon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18f1f6da3c2d369eeb1a9d1a408361f7
Autor:
Richard P. Binzel, Bonnie J. Buratti, Paul M. Schenk, Andrew R. Poppe, Leslie A. Young, Mihaly Horanyi, Jeffrey M. Moore, Andrew F. Cheng, Harold A. Weaver, Kelsi N. Singer, Ivan Linscott, Mark R. Showalter, Tod R. Lauer, William M. Grundy, Anne J. Verbiscer, Carey M. Lisse, John R. Spencer, Dennis C. Reuter, Simon B. Porter, S. Alan Stern, William B. McKinnon, Jorge I. Nunez, Joel Wm. Parker, Marc Postman, J. J. Kavelaars, Catherine B. Olkin, Daniel T. Britt, Marc W. Buie, Stuart J. Robbins, Daniel D. Durda
We used existing data from the New Horizons LORRI camera to measure the optical-band ($0.4\lesssim\lambda\lesssim0.9{\rm\mu m}$) sky brightness within seven high galactic latitude fields. The average raw level measured while New Horizons was 42 to 45
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9392a4c658012b4bade07be8a419b56a
Autor:
Kathleen Mandt, Steven Bromley, Walter M. Harris, Joel Wm. Parker, Davide Farnocchia, John Noonan, Dennis Bodewits, Jian-Yang Li, Kumar Venkataramani
Far ultraviolet observations of comets yield information about the energetic processes that dissociate the sublimated gases from their primitive surfaces. Understanding which emission processes are dominant, their effects on the observed cometary spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbc378c5ab798431293eeaf32b6c6c9f
Autor:
D. Bockelée-Morvan, Philip Heinisch, Alessandra Rotundi, Bastian Gundlach, Karl-Heinz Glassmeier, Holger Sierks, Sonia Fornasier, Hans-Ulrich Auster, Mauro Ciarniello, Cecilia Tubiana, Gianrico Filacchione, Hong Van Hoang, Jürgen Blum, B. Grieger, Gerhard Paar, Nilda Oklay, Gábor Kovács, Jean-Baptiste Vincent, Olivier Groussin, Rafael Andrés Blasco, Andrea Raponi, Fabrizio Capaccioni, Maria del Pilar Caballo Perucha, Laurent Jorda, Joel Wm. Parker, Michael Küppers, Nicolas Biver, Laurence O'Rourke
Publikováno v:
Nature
Nature, 2020, 586 (7831), pp.697-701. ⟨10.1038/s41586-020-2834-3⟩
Nature, Nature Publishing Group, 2020, 586 (7831), pp.697-701. ⟨10.1038/s41586-020-2834-3⟩
Nature, 2020, 586 (7831), pp.697-701. ⟨10.1038/s41586-020-2834-3⟩
Nature, Nature Publishing Group, 2020, 586 (7831), pp.697-701. ⟨10.1038/s41586-020-2834-3⟩
On 12 November 2014, the Philae lander descended towards comet 67P/Churyumov–Gerasimenko, bounced twice off the surface, then arrived under an overhanging cliff in the Abydos region. The landing process provided insights into the properties of a co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f310180e5afdda93c8c6cb5b245f4054
http://hdl.handle.net/11367/92799
http://hdl.handle.net/11367/92799