Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Luu, Jane"'
Most Kreutz family sungrazing comets are discovered only days before perihelion, severely limiting observational opportunities to study their physical nature and decay. Kreutz sungrazer C/2024 S1 (ATLAS) was discovered a month before reaching its per
Externí odkaz:
http://arxiv.org/abs/2412.18039
Short-period comet 108P/Ciffreo is known for its peculiar double morphology, in which the nucleus is accompanied by a co-moving, detached, diffuse 'blob'. We report new observations of 108P/Ciffreo taken with the Hubble Space Telescope and the Nordic
Externí odkaz:
http://arxiv.org/abs/2302.03697
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
The first known interstellar object 'Oumuamua exhibited a nongravitational acceleration that appeared inconsistent with cometary outgassing, leaving radiation pressure as the most likely force. Bar the alien lightsail hypothesis, an ultra-low density
Externí odkaz:
http://arxiv.org/abs/1910.07135
Autor:
Jewitt, David, Luu, Jane
We present initial observations of the interstellar body 2I/(2019 Q4) Borisov taken to determine its nature prior to the perihelion in 2019 December. Images from the Nordic Optical Telescope show a prominent, morphologically stable dust coma and tail
Externí odkaz:
http://arxiv.org/abs/1910.02547
Autor:
Jewitt, David, Luu, Jane
We present observations of the disintegrating long-period comet C/2019 J2 (Palomar) taken to determine the nature of the object and the cause of its demise. The data are consistent with break-up of a sub-kilometer nucleus into a debris cloud of mass
Externí odkaz:
http://arxiv.org/abs/1909.01964
Autor:
Jewitt, David, Kim, Yoonyoung, Luu, Jane, Rajagopal, Jayadev, Kotulla, Ralf, Ridgway, Susan, Liu, Wilson
We present imaging and spectroscopic observations of 6478 Gault, a 6 km diameter inner main-belt asteroid currently exhibiting strong, comet-like characteristics. Three distinct tails indicate that ultra-slow dust (ejection speed 0.15+/-0.05 m/s) was
Externí odkaz:
http://arxiv.org/abs/1904.07100
Long period comet C/2014 B1 (Schwartz) exhibits a remarkable optical appearance, like that of a discus or bi-convex lens viewed edgewise. Our measurements in the four years since discovery reveal a unique elongated dust coma whose orientation is stab
Externí odkaz:
http://arxiv.org/abs/1901.01438
Autor:
Jewitt, David, Luu, Jane, Rajagopal, Jayadev, Kotulla, Ralf, Ridgway, Susan, Liu, Wilson, Augusteijn, Thomas
We present observations of the interstellar interloper 1I/2017 U1 ('Oumuamua) taken during its 2017 October flyby of Earth. The optical colors B-V = 0.70$\pm$0.06, V-R = 0.45$\pm$0.05, overlap those of the D-type Jovian Trojan asteroids and are incom
Externí odkaz:
http://arxiv.org/abs/1711.05687
Autor:
Lacerda, Pedro, Luu, Jane
Publikováno v:
Astron.J.131:2314-2326,2006
We use optical data on 10 Kuiper Belt objects (KBOs) to investigate their rotational properties. Of the 10, three (30%) exhibit light variations with amplitude delta_m >= 0.15 mag, and 1 out of 10 (10%) has delta_m >= 0.40 mag, which is in good agree
Externí odkaz:
http://arxiv.org/abs/astro-ph/0601257