The Unusual Apparition of Comet 252P/2000 G1 (LINEAR) and Comparison with Comet P/2016 BA14 (PanSTARRS)

@article{Li2017TheUA,
  title={The Unusual Apparition of Comet 252P/2000 G1 (LINEAR) and Comparison with Comet P/2016 BA14 (PanSTARRS)},
  author={Jian-Yang 扬 Li 李荐 and Michael S. P. Kelley and Nalin H. Samarasinha and Davide Farnocchia and Max J. Mutchler and Yanqiong 瓊 Ren 任彦 and Xiaoping 平 Lu 盧曉 and David J. Tholen and Tim A. Lister and Marco Micheli},
  journal={The Astronomical Journal},
  year={2017},
  volume={154}
}
We imaged Comet 252P/2000 G1 (LINEAR; hereafter 252P) with the Hubble Space Telescope and both 252P and P/2016 BA14 (PanSTARRS; hereafter BA14) with the Discovery Channel Telescope in 2016 March and April, surrounding its close encounter to Earth. The r′-band Afρ of 252P in a 0.″2-radius aperture were 16.8 ± 0.3 and 57 ± 1 cm on March 14 and April 4, respectively, and its gas production rates were Q(OH) = (5.8 ± 0.1) × 1027 s−1, and Q(CN) = (1.25 ± 0.01) × 1025 s−1 on April 17. The r′-band… 

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References

SHOWING 1-10 OF 55 REFERENCES

Hubble Space Telescope Observations of the Nucleus of Comet 45P/Honda–Mrkos–Pajdusakova and Its Inner Coma

Abstract The nucleus of Comet 45P/Honda–Mrkos–Pajdusakova was detected during Hubble Space Telescope observations taken with the Wide-Field Planetary Camera 2 (WFPC2) in February 1996 when the comet

SEASONAL EVOLUTION ON THE NUCLEUS OF COMET C/2013 A1 (SIDING SPRING)

We observed Comet C/Siding Spring using the Hubble Space Telescope (HST) during its close approach to Mars. The high spatial resolution images obtained through the F689M, F775W, and F845M filters

The nuclei of comets 126P/IRAS and 103P/Hartley 2

We report the detection of the nucleus of 126P/IRAS and 103P/Hartley 2 with the Infrared Camera of the Infrared Space Observatory (ISOCAM). 126P/IRAS was observed on 12 November 1996, when it was at

Characterizing the Dust Coma of Comet C/2012 S1 (ISON) at 4.15 AU from the Sun

We report results from broadband visible images of comet C/2012 S1 (ISON) obtained with the Hubble Space Telescope Wide Field Camera 3 on 2013 April 10. C/ISON's coma brightness follows a 1/ρ (where

Comet nucleus size distributions from HST and Keck telescopes

CONSTRAINING THE DUST COMA PROPERTIES OF COMET C/SIDING SPRING (2013 A1) AT LARGE HELIOCENTRIC DISTANCES

The close encounter of comet C/2013 A1 (Siding Spring) with Mars on 2014 October 19 presented an extremely rare opportunity to obtain the first flyby quality data of the nucleus and inner coma of a

Properties of the nuclei and comae of 10 ecliptic comets from Hubble Space Telescope multi-orbit observations

Context. Knowledge of the size distribution of cometary nuclei and, more generally, of their physical properties is important for constraining models of the formation and evolution of the Solar

COMET D/1819 W1 (BLANPAIN): NOT DEAD YET

We present a new observation that conclusively reveals the cometary nature of the planet-crossing asteroid 2003 WY25 through the detection of a weak optical coma. This observation strongly supports

COMET 252P/LINEAR: BORN (ALMOST) DEAD?

Previous studies have revealed Jupiter-family comet 252P/LINEAR as a comet that was recently transported into the near-Earth object (NEO) region in ∼1800 AD yet only being weakly active. In this

Photometric properties of the nucleus of Comet 103P/Hartley 2

...