Spectroscopic Observation of Comet P/de Vico: Comparison with P/Halley and P/Brorsen-Metcalf

Publications of the Astronomical Society of Japan

Matsubara, Keiji¹  Kawakita, Hideyo²  Ayani, Kazuya³ 

[1] 4-7-7 Naizen, Kashihara, Nara 634-0804;Gunma Astronomical Observatory, 1-18-7 Otomo, Maebashi, Gunma 371-0847 E-mail:;Bisei Astronomical Observatory, Bisei, Oda, Okayama 714-1400

关键词: "Comets: individual (P/de Vico)";    "comets: general";    Spectroscopy;   

DOI  :  10.1093/pasj/50.3.343

学科分类：天文学(综合)

来源: Oxford University Press

【 摘 要 】

AspectroscopicobservationofCometP/deVicointhevisibleregionwasmadeatBiseiAstronomicalObservatoryon1995October11.Theobtainedspectrumcoversthewavelengthsfrom5200to7200Å,andincludesseveralemissions,suchasC2,NH2,and[OI].Theratiosofthegas-productionratesofC2andNH2relativetothatofH2O,Q(C2)/Q(H2O),andQ(NH2)/Q(H2O),weredeterminedfromourobservationbasedontheHasermodel.Theproduction-rateratioandgas-to-dustratiowere:Q(C2)/Q(H2O)=0.25%,Q(NH2)/Q(H2O)=0.14%,andlog10[Q(H2O)/Afρ]=26.9atthetimeofobservation.CometP/deVicowassimilartoP/Halleyfromtheviewpointofthechemicalcomposition(C2andNH2relativetotheH2O),andP/deVicowascomparabletoP/Brorsen-Metcalfconcerningthegas-to-dustratio.P/deVicowasoneofthemostgas-richcometseverknown.

【 授权许可】

Unknown