Herschel/HIFI observations of molecular emission in protoplanetary nebulae and young planetary nebulae

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Table 1

Observed sources.

Source	α (J2000)	δ (J2000)	Central star	Previous CO data	Comments

C-rich nebulae
CRL 618	04 42 53.7	+36 06 53.2	B0	2–1 and 1–0 maps¹, high-J data²
CRL 2688	21 02 18.7	+36 41 37.8	F5Iae	2–1 maps³
NGC 7027	21 07 01.6	+42 14 10.2	O	2–1 and 1–0 maps⁴	high-excitation nebula
Red Rectangle	06 19 58.2	−10 38 14.7	A1	2–1 and 1–0 maps⁵	equatorial disk in rotation
IRAS 22272+5435	22 29 10.4	+54 51 06.3	G5Ia	1–0 maps⁶, 2–1 and 1–0 spectra⁷	isotrpic shell, no bipolar flow

O-rich nebulae
OH 231.8+4.2	07 42 16.8	−14 42 52.1	M9III + AV	2–1 and 1–0 maps⁸, high-J data⁹	Calabash Nebula
Boomerang Nebula	12 44 45.4	−54 31 11.4	G0III	2–1 and 1–0 spectra¹⁰
Frosty Leo	9 39 54.0	+11 58 54.0	K7III	2–1 and 1–0 maps¹¹
IRAS 17436+5003	17 44 55.4	+50 02 39.5	F2-5Ib	2–1 and 1–0 spectra⁷	HD 161796
NGC 6302	17 13 44.2	−37 06 15.9	O	2–1 maps¹²	high-excitation nebula

References.

⁽¹⁾

Sánchez Contreras et al. (2004);

⁽²⁾

Bujarrabal et al. (2010); Nakashima et al. (2007);

⁽³⁾

Cox et al. (2000);

⁽⁴⁾

Nakashima et al. (2010);

⁽⁵⁾

Bujarrabal et al. (2005);

⁽⁶⁾

Fong et al. (2006);

⁽⁷⁾

Bujarrabal et al. (2001);

⁽⁸⁾

Alcolea et al. (2001);

⁽⁹⁾

(Alcolea et al. 2011, in prep.);

⁽¹⁰⁾

Bujarrabal & Bachiller (1991); Sahai & Nyman (1997);

⁽¹¹⁾

Castro-Carrizo et al. (2005);

⁽¹²⁾

Dinh-V-Trung et al. (2008).

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