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Your search keyword '"Bosh, Amanda S."' showing total 15 results
Start Over Author "Bosh, Amanda S." Publication Type Academic Journals
15 results on '"Bosh, Amanda S."'

1. Uranus ring occultation observations: 1977–2006

Author

French, Richard G., McGhee-French, Colleen A., Gordon, Mitchell, Baron, Richard L., Bosh, Amanda S., Buie, Marc W., Chanover, Nancy, Clark, Mary Ann, Dunham, Edward W., French, Linda M., Glass, Ian S., Goguen, Jay D., Gregory, Brooke, Hock, Rachel A., Kangas, Julie A., Levine, Stephen E., Matthews, Keith Y., McMason, Emily C., Meech, Karen J., Mink, Jessica, Nicholson, Philip D., Person, Michael J., Roques, Françoise, Sicardy, Bruno, Stecklum, Bringfried, Tholen, David, Young, Eliot F., and Young, Leslie A.

Published
2023
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3. Haze in Pluto's atmosphere: Results from SOFIA and ground-based observations of the 2015 June 29 Pluto occultation

Author

Person, Michael J., Bosh, Amanda S., Zuluaga, Carlos A., Sickafoose, Amanda A., Levine, Stephen E., Pasachoff, Jay M., Babcock, Bryce A., Dunham, Edward W., McLean, Ian S., Wolf, Jürgen, Abe, Fumio, Becklin, E.E., Bida, Thomas A., Bright, Len P., Brothers, Tim, Christie, Grant, Durst, Rebecca F., Gilmore, Alan C., Hamilton, Ryan T., Harris, Hugh C., Johnson, Chris, Kilmartin, Pamela M., Kosiarek, Molly, Leppik, Karina, Logsdon, Sarah E., Lucas, Robert, Mathers, Shevill, Morley, C.J.K., Nelson, Peter, Ngan, Haydn, Pfüller, Enrico, Natusch, Tim, Sallum, Stephanie, Savage, Maureen L., Seeger, Christina H., Siu, Ho Chit, Stockdale, Chris, Suzuki, Daisuke, Thanathibodee, Thanawuth, Tilleman, Trudy, Tristram, Paul J., Vacca, William D., Van Cleve, Jeffrey, Varughese, Carolle, Weisenbach, Luke W., Widen, Elizabeth, and Wiedemann, Manuel

Published
2021
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7. Saturn's dynamic D ring

Author

Hedman, Matthew M., Burns, Joseph A., Showalter, Mark R., Porco, Carolyn C., Nicholson, Philip D., Bosh, Amanda S., Tiscareno, Matthew S., Brown, Robert H., Buratti, Bonnie J., Baines, Kevin H., and Clark, Roger

Published
2007
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8. Uranus after solstice: results from the 1998 November 6 occultation

Author

Young, Leslie A., Bosh, Amanda S., Buie, Marc, Elliot, J.L., and Wasserman, Lawrence H.

Subjects
Uranus (Planet) -- Atmosphere, Occultations -- Research, Astronomy, Earth sciences
Abstract

We observed a stellar occultation of the star U149 by Uranus from Lowell Observatory and the IRTF on Mauna Kea on November 6, 1998. The temperatures derived from isothermal fits to the Lowell lightcurves are 116.7 [+ or -] 7.9 K for immersion, and 124.8 [+ or -] 15.5 K for emersion. The secular increase in temperature seen during the period 1977-1983 has reversed. Furthermore, the rate of decrease ([greater than or equal to] 1.2 K/yr) cannot be explained solely by radiative cooling. Although the temperature structure of Uranus' upper atmosphere may be related to seasonal effects (e.g., the subsolar latitude) or local conditions (e.g., diurnally averaged insolation), these observations suggest nonradiative influences on the temperature, such as adiabatic heating/cooling or thermal conduction. Key Words: Uranus, atmosphere; occultations; atmospheres, structure; atmospheres, dynamics.

Published
2001

9. A Visual Spectrum of Triton from the Hubble Space Telescope

Author

Tryka, Kimberly A. and Bosh, Amanda S.

Subjects
Triton (Satellite) -- Research, Satellites -- Neptune, Astronomical photometry -- Analysis, Telescope -- Usage, Astronomy, Earth sciences
Abstract

Observations of Triton were made using the Faint Object Spectrograph on the Hubble Space Telescope in August of 1995. We present a visual spectrum of Triton between 3000 and 8500 (angstroms). We compare our measurements with previous observations and find that Triton's color in 1995 is consistent with its color at the time of the Voyager 2 flyby. Key Words: Triton; surfaces, satellite; spectroscopy; photometry.

Published
1999

10. Saturn ring-plane crossing, May 1995: pole precession and ring thickness

Author

Bosh, Amanda S., Rivkin, Andrew S., Percival, Jeffrey W., Taylor, MaryJane, and Citters, G. Wayne van

Subjects
Saturn (Planet) -- Ring system, Planetary rings -- Analysis, Astronomy, Earth sciences
Abstract

On 22 May 1995, as the Earth crossed through Saturn's ring-plane, we used the Wide Field Planetary Camera 2 on the Hubble Space Telescope to image Saturn and its rings for 10 hr centered near the predicted time of ring-plane crossing. By performing photometry on the rings, we find that the time of ring-plane crossing is later than the nominal predicted time, suggesting that Saturn's pole is precessing at a rate somewhat slower than is predicted for a rigid body under the influence of torques from the Sun and Saturn's satellites and/or that Saturn's pole position is different from the nominal position. We determine the equivalent thickness of the rings to be 1.4 [+ or -] 0.1 km, and find that the measured value corresponds to the amplitude of perturbations from the Laplace plane warp and satellite-induced bending waves.

Published
1997

11. Stellar occultation by 2060 Chiron

Author

Bus, Schelte J., Buie, Marc W., Schleicher, David G., Hubbard, William B., Marcialis, Robert L., Hill, Richard, Wasserman, Lawrence H., Spencer, John R., Millis, Robert L., Franz, Otto G., Bosh, Amanda S., Dunham, Edward W., Ford, Charles H., Young, James W., Elliot, J.L., Meserole, Richard, Olkin, Catherine B., McDonald, Stephen W., Foust, Jeffrey A., Sopata, Lisa M., and Bandyopadhyay, Reba M.

Subjects
Stars, Double -- Observations, Occultations -- Research, Chiron (Comet) -- Observations, Astronomy, Earth sciences
Abstract

A 14th magnitude double star was occulted by 2060 Chiron on 1993 November 7. Observations of this event were obtained from five locations in California. An occultation by Chiron's nucleus was recorded at one of these sites, while a possible graze by the nucleus was seen at the next closest location. If this possible graze represents a true detection of the nucleus, Chiron's radius is determined to be 89.6 [+ or -] 6.8 km, assuming a circular outline for the shape. If the nucleus was not seen at the second location, Chiron's radius is only constrained as being greater than 90.2 [+ or -] 6.5 km. The presence of dust in Chiron's inner coma was also detected in four of the five occultation datasets. Lightcurve features were identified that may be explained by narrow, collimated jets of material, and by a much larger region of dust distributed asymmetrically about Chiron's nucleus. Periodic fluctuations in the dust may have been detected in one of the lightcurves. If this periodicity is real, and is induced as a result of Chiron's rotation, then a minimum expansion velocity for the dust is found to be [approximately]40 m [sec.sup.-1].

Published
1996

14. Solar system science with the Wide-Field Infrared Survey Telescope.

Author

Holler, Bryan J., Milam, Stefanie N., Bauer, James M., Alcock, Charles, Bannister, Michele T., Bjoraker, Gordon L., Bodewits, Dennis, Bosh, Amanda S., Buie, Marc W., Farnham, Tony L., Haghighipour, Nader, Hardersen, Paul S., Harris, Alan W., Hirata, Christopher M., Hsieh, Henry H., Kelley, Michael S. P., Knight, Matthew M., Kramer, Emily A., Longobardo, Andrea, and Nixon, Conor A.

Published
2018
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