A spectral-line survey of CIT 6 between 30 and 50 GHz with the eQ receiver at NRO 45 m

Open Access

Table 2

Basic properties of CIT 6 and IRC+10216.

	CIT 6	IRC+10216	References (CIT 6; IRC+10216)
Distance (pc)	400 ± 50	123 ± 14	Cohen & Hitchon (1996); Groenewegen et al. (2012)
Dust-effective stellar radius (AU)	7	11	Ramstedt & Olofsson (2014); Menten et al. (2012)
Envelope radius (AU)	2600	13370	Dinh-V.-Trung & Lim (2009); Tuo et al. (2024)
T_eff(K)	1800	1630	Ramstedt & Olofsson (2014); Menten et al. (2012)
Luminosity (L_⊙)	10000	8600	Ramstedt & Olofsson (2014); Menten et al. (2012)
V_LSR(km s⁻¹)	−1	−26	Fukasaku et al. (1994); Menten et al. (2012)
Expansion velocity (km s⁻¹)	17	14.5	Dinh-V.-Trung & Lim (2009); Cernicharo et al. (2000)
Mass-loss rate $\dot{M} (M_{⊙} {y r}^{- 1})$ $\dot{M} \ (M_{\odot} \mathrm{yr}^{-1})$	1.1 × 10⁻⁵	2.2 × 10⁻⁵	Dinh-V.-Trung & Lim (2009); Whitelock et al. (2006)
Variability period (days)	630	640	Alksnis & Khozov (1975); Whitelock et al. (2006)

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