The Effelsberg survey of FU Orionis and EX Lupi objects - I. Host environments of FUors and EXors traced by NH3

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Volume 672 (April 2023)

A&A, 672 (2023) A158

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Table 2

NH₃ (1, 1) line parameters for the EX Lupi-type objects detected in our survey.

Name	RA (J2000) (^{h m s})	Dec (J2000) (° ′ ″)	τ(1, 1)^(a)	υ_LSR(1, 1)^(b) (km s⁻¹)	∆υ(1, 1)^(c) (km s⁻¹)	T_MB(1, 1)^(d) (K)	∆υ_th^(e) (km s⁻¹)	∆υ_nt^(f) (km s⁻¹)	Ma^(g)
V512 Per (SVS 13)	03 29 03.75	+31 16 03.9	1.77 (0.03)	8.45 (0.01)	0.64 (0.01)	4.23 (0.35)	0.27	0.58	1.03
LDN 1415 IRS	04 41 37.50	+54 19 22.0	1.26 (0.62)	−5.77 (0.02)	0.48 (0.04)	0.63 (0.16)	0.19^(h)	0.44^(h)	0.85^(h)
V371 Ser	18 29 51.21	+01 16 39.4	2.20 (0.03)	8.34(0.01)	0.78 (0.01)	3.76 (0.34)	0.23	0.74	1.54
V2492 Cyg	20 51 26.23	+44 05 23.8	0.86 (0.37)	4.71 (0.02)	0.70 (0.05)	0.74(0.15)	0.19^(h)	0.67^(h)	1.29^(h)

Notes. ^(a) Optical depth of the (1, 1) transition main line. ^(b) LSR velocity. ^(c) Line width determined using the HFS fitting method. ^(d) Main beam brightness temperature. ^(e) Thermal line width. ^(f) Non-thermal line width. ^(g) Mach number. ^(h) Source with the assumed T_kin value of 14.6 K.

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