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Abundances in Comet 19P/Borrelly at the Time of the Spacecraft Encounters

Toshihiko Hamane, Hideyo Kawakita, Kenzo Kinugasa, Tomoyasu Yamamuro and Norihide Takeyama.

in Publications of the Astronomical Society of Japan

June 2002; p ublished online June 2002 .

Journal Article. Subjects: Planetary Systems. 1797 words.

A spectroscopic observation of comet 19P/Borrelly was carried out on 2001 September 23, using a low-dispersion spectrograph in the wavelength range 3800–7600[math]. It was performed about...

Accretion Disks with a Cloudy Sky — Photon Floater

Jun Fukue.

in Publications of the Astronomical Society of Japan

February 1996; p ublished online February 1996 .

Journal Article. Subjects: Astrometry and Celestial Mechanics; Galaxies; Planetary Systems. 0 words.

Materials rotating above/below an accretion disk around a central object suffer from the influence of the strong radiation fields of the disk as well as the gravity of the central object....

Albedo, Size, and Surface Characteristics of Hayabusa-2 Sample-Return Target 162173 1999 JU3 from AKARI and Subaru Observations

Sunao Hasegawa, Thomas G. MüLler, Kyoko Kawakami, Toshihiro Kasuga, Takehiko Wada, Yoshifusa Ita, Naruhisa Takato, Hiroshi Terada, Takuya Fujiyoshi and Masanao Abe.

in Publications of the Astronomical Society of Japan

December 2008; p ublished online December 2008 .

Journal Article. Subjects: Astronomy and Astrophysics; Astrometry and Celestial Mechanics; Planetary Systems. 4080 words.

Mid-infrared observations of the Apollo-type asteroid 162173 1999 JU3 were performed in 2007 May during its close Earth approach with the AKARI space telescope and in 2007 August with the...

All-Sky Video Orbits of Lyrids 2009

Juraj TÓTh, Leonard Kornoš, Peter Vereš, Jirí ŠIlha, Dušan Kalmancok, Pavol Zigo and Jozef VilÁGi.

in Publications of the Astronomical Society of Japan

April 2011; p ublished online April 2011 .

Journal Article. Subjects: Planetary Systems. 1935 words.

We report observational results of the Lyrid meteor shower observed by the double-station all-sky video system on the night of 2009 April 21/22 at the Astronomical and Geophysical...

Application of a Self-Organizing State Space Model to the Leonid Meteor Storm in 2001

Tsutomu T. Takeuchi, Shigetomo Shiki, Daisuke Miyamoto, Hideaki Fujiwara, Jun Kitazume and Yousuke Utsumi.

in Publications of the Astronomical Society of Japan

June 2003; p ublished online June 2003 .

Journal Article. Subjects: Astronomical Instrumentation, Methods, and Techniques; Planetary Systems. 4110 words.

The Leonids show meteor storms with a period of 33 years, and are known as one of the most active meteor showers. It has recently shown a meteor stream consisting of several narrow dust...

Approximate Orbits of Ancient and Medieval Comets

Ichiro Hasegawa.

in Publications of the Astronomical Society of Japan

December 2002; p ublished online December 2002 .

Journal Article. Subjects: Planetary Systems. 3607 words.

This is one of our reports in a continuing series of papers providing orbital elements for ancient and medieval comets recorded in histories. Newly determined orbital elements and...

Asteroid Catalog Using AKARI: AKARI/IRC Mid-Infrared Asteroid Survey

Fumihiko Usui, Daisuke Kuroda, Thomas G. MÜLler, Sunao Hasegawa, Masateru Ishiguro, Takafumi Ootsubo, Daisuke Ishihara, Hirokazu Kataza, Satoshi Takita, Shinki Oyabu, Munetaka Ueno, Hideo Matsuhara and Takashi Onaka.

in Publications of the Astronomical Society of Japan

October 2011; p ublished online October 2011 .

Journal Article. Subjects: Astronomy and Astrophysics; Astronomical Instrumentation, Methods, and Techniques; Planetary Systems. 13859 words.

We present the results of an unbiased asteroid survey in the mid-infrared wavelength region with the Infrared Camera (IRC) on board the Japanese infrared satellite AKARI. About 20% of the...

The Asteroid Catalog Using AKARI IRC Slow-Scan Observations

Sunao Hasegawa, Thomas G. Müller, Daisuke Kuroda, Satoshi Takita and Fumihiko Usui.

in Publications of the Astronomical Society of Japan

April 2013; p ublished online April 2013 .

Journal Article. Subjects: Astronomy and Astrophysics; Astronomical Instrumentation, Methods, and Techniques; Planetary Systems. 8212 words.

We present an asteroidal catalog from the mid-infrared wavelength region using the slow-scan observation mode obtained by the Infrared Camera (IRC) on-board the Japanese infrared satellite...

Asteroid Lightcurve Observations near Stationary Points: (4179) Toutatis in 1997 February

Tsuko Nakamura and Tetsuharu Fuse.

in Publications of the Astronomical Society of Japan

October 1998; p ublished online October 1998 .

Journal Article. Subjects: Planetary Systems. 0 words.

Lightcurve observations of asteroids with long-spin periods (say, more than a few days) are particularly important regarding the detection of a non-principal axis spin state. However, it is...

Asymmetric Dust Jets and Extended Structure of 22P/Kopff Observed During 2009 Appearance

Hidekazu Hanayama, Masateru Ishiguro, Jun-Ichi Watanabe, Yuki Sarugaku, Hideo Fukushima, Takeshi Miyaji, Kenshi Yanagisawa, Daisuke Kuroda, Michitoshi Yoshida, Kouji Ohta and Nobuyuki Kawai.

in Publications of the Astronomical Society of Japan

December 2012; p ublished online December 2012 .

Journal Article. Subjects: Planetary Systems. 4541 words.

22P/Kopff images were taken with Multicolor Imaging Telescopes for Survey and Monstrous Explosions (MITSuME) 3ch simultaneous CCD cameras on the Ishigakijima astronomical observatory 105-cm...

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Aurora candidates from the chronicle of Qíng dynasty in several degrees of relevance

Akito D. Kawamura, Hisashi Hayakawa, Harufumi Tamazawa, Hiroko Miyahara and Hiroaki Isobe.

in Publications of the Astronomical Society of Japan

October 2016; p ublished online August 2016 .

Journal Article. Subjects: Astronomy and Astrophysics; Planetary Systems; Solar Physics. 5998 words.

We present the result of a survey of sunspots and auroras in Qíngshǐgǎo (清史稿), a draft chronicle of Qíng dynasty, for the period of 1559–1912 CE. This is a sequel to a series of works...

Automatic Detection Algorithm for Small Moving Objects

Toshifumi Yanagisawa, Atsushi Nakajima, Ken-ichi Kadota, Hirohisa Kurosaki, Tsuko Nakamura, Fumi Yoshida, Budi Dermawan and Yusuke Sato.

in Publications of the Astronomical Society of Japan

April 2005; p ublished online April 2005 .

Journal Article. Subjects: Astronomical Instrumentation, Methods, and Techniques; Planetary Systems. 4912 words.

We have devised an automatic detection algorithm for unresolved moving objects, such as asteroids and comets. The algorithm uses many CCD images in order to detect very dark moving objects...

Binary Formation in Planetesimal Disks. I. Equal Mass Planetesimals

Junko D. Kominami, Junichiro Makino and Hiroshi Daisaka.

in Publications of the Astronomical Society of Japan

December 2011; p ublished online December 2011 .

Journal Article. Subjects: Planetary Systems. 8717 words.

As of April 2010, 48 TNO (trans-Neptunian Object) binaries have been found. This is about 6% of known TNOs. However, in previous theoretical studies of planetary formation in the TNO...

Binary formation in planetesimal disks. II. Planetesimals with a mass spectrum

Junko D. Kominami and Junichiro Makino.

in Publications of the Astronomical Society of Japan

December 2014; p ublished online December 2014 .

Journal Article. Subjects: Planetary Systems. 5015 words.

Many massive objects have been found in the outer region of the solar system. How they were formed and evolved has not been well understood, although there have been intensive studies of...

CCD Photometry of the MUSES-C Mission Target: Asteroid (25143) 1998 SF36

Budi Dermawan, Tsuko Nakamura, Hideo Fukushima, Hideo Sato, Fumi Yoshida and Yusuke Sato.

in Publications of the Astronomical Society of Japan

August 2002; p ublished online August 2002 .

Journal Article. Subjects: Astronomical Instrumentation, Methods, and Techniques; Planetary Systems. 4012 words.

Near-Earth asteroid (25143) 1998 SF36 is now planned as the target for the Japanese MUSES-C sample return mission. We conducted extensive photometric observations at NAO-Mitaka from 2001...

Color Variation of a Very Young Asteroid, Karin

Takashi Ito and Fumi Yoshida.

in Publications of the Astronomical Society of Japan

February 2007; p ublished online February 2007 .

Journal Article. Subjects: Planetary Systems. 4961 words.

We present current results of our long-term campaign to make photometric observations of the new-born Karin family asteroids, especially those of (832) Karin. Karin, an S-type main-belt...

Comparative Studies of Visible and IRAS Interplanetary Dust Bands

Masateru Ishiguro, Ryosuke Nakamura, Yasumasa Fujii and Tadashi Mukai.

in Publications of the Astronomical Society of Japan

June 1999; p ublished online June 1999 .

Journal Article. Subjects: Planetary Systems. 0 words.

We have examined the diversity and similarity of visible dust bands and infrared dust bands based on data obtained by our ground-based observations (Ishiguro et al. 1999, ApJ 511, 432) and...

A comparative study of infrared asteroid surveys: IRAS, AKARI, and WISE

Fumihiko Usui, Sunao Hasegawa, Masateru Ishiguro, Thomas G. Müller and Takafumi Ootsubo.

in Publications of the Astronomical Society of Japan

June 2014; p ublished online June 2014 .

Journal Article. Subjects: Astronomy and Astrophysics; Planetary Systems; Astronomical Instrumentation, Methods, and Techniques. 5749 words.

We present a comparative study of three infrared asteroid surveys based on the size and albedo data from the Infrared Astronomical Satellite (IRAS), the Japanese infrared satellite AKARI,...

A Comparative Study of Size Distributions for Small L4 and L5 Jovian Trojans

Fumi Yoshida and Tsuko Nakamura.

in Publications of the Astronomical Society of Japan

April 2008; p ublished online April 2008 .

Journal Article. Subjects: Astronomy and Astrophysics; Planetary Systems. 3208 words.

We examined the size distributions of small L4 and L5 Jovian Trojan asteroids detected in the Subaru main belt asteroid survey (SMBAS). This was the first attempt to make a comparison of...

Conditions of Gravitational Instability in Protoplanetary Disks

Shigeo S. Kimura and Toru Tsuribe.

in Publications of the Astronomical Society of Japan

October 2012; p ublished online October 2012 .

Journal Article. Subjects: Astrometry and Celestial Mechanics; Planetary Systems. 12369 words.

Gravitational instability is one of the considerable mechanisms to explain the formation of giant planets. We have studied the gravitational stability in protoplanetary disks around a...