Secular light curves of NEAs 2201 Oljato, 3200 Phaethon, 99942 Apophis, 162173 Ryugu, 495848 and 6063 Jason
نویسندگان
چکیده
منابع مشابه
Search for Activity in 3200 Phaethon
We present deep optical imaging of Geminid meteor stream parent 3200 Phaethon taken in search of low-level cometary activity (i.e., coma or dust trail). Although no unambiguous cometary behavior was observed, we find an upper limit on the object’s cometary mass-loss rate of Ṁlim 0:01 kg s . The corresponding active fraction (the fraction of the surface area that could consist of freely sublimat...
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We present a study of planet-crossing asteroid (3200) Phaethon at three successive perihelia in 2009, 2010, and 2012, using the NASA STEREO spacecraft. Phaethon is clearly detected in 2009 and 2012, but not in 2010. In both former years, Phaethon brightened unexpectedly by ∼1 mag at large phase angles, inconsistent with the ∼1 mag of steady fading expected from a discrete, macroscopic body over...
متن کاملThe tumbling spin state of (99942) Apophis
http://dx.doi.org/10.1016/j.icarus.2014.01.026 0019-1035/ 2014 Elsevier Inc. All rights reserved. ⇑ Corresponding author. Fax: +420 323 620263. E-mail address: [email protected] (P. Pravec). P. Pravec a,⇑, P. Scheirich , J. Ďurech , J. Pollock , P. Kušnirák , K. Hornoch , A. Galád , D. Vokrouhlický , A.W. Harris , E. Jehin , J. Manfroid , C. Opitom , M. Gillon , F. Colas , J. Oey , J. Vraštil ...
متن کاملAn upper limit on gas production from 3200 Phaethon
Asteroid 3200 Phaethon resembles a comet in some ways, including a highly-eccentric orbit (e∼ 0.89) and a strong associated meteor shower (the Geminids). Yet this object has never been observed to exhibit any cometary activity, i.e., gas production. We observed 3200 Phaethon with the Caltech Submillimeter Observatory on two occasions, once while it was near its closest approach to Earth as it n...
متن کاملNumerical predictions of surface effects during the 2029 close approach of Asteroid 99942 Apophis
Asteroid (99942) Apophis' close approach in 2029 will be one of the most significant small-body encounter events in the near future and offers a good opportunity for in situ exploration to determine the asteroid's surface properties and measure any tidal effects that might alter its regolith configuration. Resurfacing mechanics has become a new focus for asteroid researchers due to its importan...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2018
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/sty1474