Results 31 to 40 of about 8,179,295 (185)
PHYSICAL PROPERTIES OF MAIN-BELT COMET 176P/LINEAR [PDF]
The Astronomical Journal, 2011 We present a physical characterization of main-belt comet 176P/LINEAR. Observations show the object exhibiting a fan-shaped tail in late 2005, but then becoming inactive in early 2006. Using data from 2007 when the object was observed to be inactive, we derive best-fit IAU phase function parameters of H=15.10 mag and G=0.15, linear phase function ...
Hsieh, Henry H. +3 more
openaire +3 more sources
Splitting of Long-period Comet C/2018 F4 (PANSTARRS)
The Astronomical Journal, 2023 Long-period comet C/2018 F4 (PANSTARRS) was observed to show duplicity of its inner region in 2020 September, suggestive of a splitting event. We here present analyses of our observations of the comet taken from the LCO Outbursting Objects Key project ...
Man-To Hui +6 more
doaj +1 more source
MAIN-BELT COMET P/2008 R1 (GARRADD) [PDF]
The Astronomical Journal, 2009 We present a study of the newly-discovered main-belt comet P/2008 R1 (Garradd), an object with the dynamical characteristics of an asteroid and the physical characteristics of a comet. Photometry sets a limit to the effective radius of the nucleus at r_e < 0.7 km (red geometric albedo 0.05 assumed). The coma shows a secular fading in our data caused
Jewitt, David +2 more
openaire +2 more sources
SUBLIMATION-DRIVEN ACTIVITY IN MAIN-BELT COMET 313P/GIBBS [PDF]
The Astrophysical Journal, 2015 We present an observational and dynamical study of newly discovered main-belt comet 313P/Gibbs. We find that the object is clearly active both in observations obtained in 2014 and in precovery observations obtained in 2003 by the Sloan Digital Sky Survey, strongly suggesting that its activity is sublimation-driven.
Henry H. Hsieh +17 more
openaire +4 more sources
Planetary Trojans – the main source of short period comets? [PDF]
, 2010 One of the key considerations when assessing the potential habitability of telluric worlds will be that of the impact regime experienced by the planet. In this work, we present a short review of our understanding of the impact regime experienced by the ...
Horner, J. +3 more
core +1 more source
Observational Data and Orbits of the Asteroids Discovered at the Molėtai Observatory in 2008–2009
Open Astronomy, 2016 We present the statistics of the asteroids observed and discovered at the Molėtai Observatory, Lithuania, in 2008–2009 within the project for astrometric observations of the near-Earth objects (NEOs), the main belt asteroids and comets.
Černis K. +2 more
doaj +1 more source
The Planetary Science JournalWe report results from an analysis of the volatile composition and evolution of the main-belt comet (MBC) 133P/Elst–Pizarro using JWST NIRSpec and NIRCam observations and ground-based observations during its 2024 active apparition, and also assess the ...
Henry H. Hsieh +12 more
doaj +1 more source
Journal of Sleep Research, EarlyView.ABSTRACT Sleep loss influences basic emotional and cognitive processes, but its impact on higher‐order naturalistic cognition, such as aesthetic judgements, is less understood. The current study primarily investigated whether experimental sleep restriction altered aesthetic evaluations of abstract artwork, and secondarily tested whether these ...
Ariadne D. Godinho +3 more
wiley +1 more source
Main Belt Comets: Status Report of the Monitoring Large Programme at ESO [PDF]
, 2012 A status report of the 4-years long ESO Large Program, aimed at monitoring and characterizing Main Belt Comets. The program is 50% completed. Some of the MBCs were observed active.
Hainaut, O. R. +12 more
core
The Planetary Science JournalWe present JWST NIRSpec and NIRCam observations of 457P/Lemmon-PANSTARRS, a main-belt comet that displayed activity around its 2020 perihelion and that was observed to regain activity during its 2024 perihelion by a ground-based observing campaign.
John W. Noonan +12 more
doaj +1 more source