Water Production Rates and Activity of Interstellar Comet 2I/Borisov

@article{Xing2020WaterPR,
  title={Water Production Rates and Activity of Interstellar Comet 2I/Borisov},
  author={Zexi Xing and Dennis Bodewits and John W. Noonan and Michele T. Bannister},
  journal={arXiv: Earth and Planetary Astrophysics},
  year={2020}
}
We observed the interstellar comet 2I/Borisov using the Neil Gehrels-Swift Observatory's Ultraviolet/Optical Telescope. We obtained images of the OH gas and dust surrounding the nucleus at six epochs spaced before and after perihelion (-2.56 AU to 2.54 AU). Water production rates increased steadily before perihelion from $(7.0\pm1.5)\times10^{26}$ molecules s$^{-1}$ on Nov. 1, 2019 to $(10.7\pm1.2)\times10^{26}$ molecules s$^{-1}$ on Dec. 1. This rate of increase in water production rate is… 

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References

SHOWING 1-10 OF 55 REFERENCES
Detection of a Water Tracer in Interstellar Comet 2I/Borisov
We present high spectral resolution optical spectra obtained with the ARCES instrument at Apache Point Observatory showing detection of the [OI]6300 A line in interstellar comet 2I/Borisov. We employ
Detection of CN Gas in Interstellar Object 2I/Borisov
The detection of Interstellar Objects passing through the Solar System offers the promise of constraining the physical and chemical processes involved in planetary formation in other extrasolar
The Nucleus of Interstellar Comet 2I/Borisov
We present high resolution imaging observations of interstellar comet 2I/Borisov (formerly C/2019 Q4) obtained using the Hubble Space Telescope. Scattering from the comet is dominated by a coma of
Water Production of Comet C/1999 S4 (LINEAR) Observed with the SWAN Instrument
The SWAN (Solar Wind ANisotropies) Lyman-alpha all-sky camera on the SOHO spacecraft observed the hydrogen coma of comet C/1999 S4 (LINEAR) from the end of May through mid-August 2000. A systematic
2I/Borisov: A C2-depleted interstellar comet
Aims. The discovery of the first active interstellar object 2I/Borisov provides an unprecedented opportunity to study planetary formation processes in another planetary system. In particular,
The Evolving Activity of the Dynamically Young Comet C/2009 P1 (Garradd)
We used the Ultraviolet-Optical Telescope on board Swift to observe the dynamically young comet C/2009 P1 (Garradd) from a heliocentric distance of 3.5 AU pre-perihelion until 4.0 AU outbound. At 3.5
Icy Grains from the Nucleus of Comet C/2013 US 10 (Catalina)
We present IRTF/SpeX and NEOWISE observations of the dynamically new comet C/2013 US$_{10}$ (Catalina), hereafter US10, from 5.8 au inbound, to near perihelion at 1.3 au, and back to 5.0 au outbound.
THE EXTREMELY ANOMALOUS MOLECULAR ABUNDANCES OF COMET 96P/MACHHOLZ 1 FROM NARROWBAND PHOTOMETRY
Narrowband-filter photometry of Comet 96P/Machholz 1 was obtained at Lowell Observatory during the comet's 2007 apparition. Production rates of OH, CN, C2, C3, and NH were derived from these data
Carbon Chain Depletion of 2I/Borisov
The composition of comets in the solar system come in multiple groups thought to encode information about their formation in different regions o fthe outer protosolar disk. The recent discovery of
Detection of Diatomic Carbon in 2I/Borisov
2I/Borisov is the first-ever observed interstellar comet (and the second detected interstellar object). It was discovered on 30 August 2019 and has a heliocentric orbital eccentricity of ~ 3.35,
...
1
2
3
4
5
...