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COH05 - A circular planetary nebula around the OH/IR star OH354.88-0.54 (V1018 Sco)

Short title: Cohen et al. (2005)
Authors: Cohen, Martin Parker, Quentin A. Chapman, Jessica
Journal: Monthly Notices of the Royal Astronomical Society, Volume 357, Issue 4, pp. 1189-1196.
Bibcode:

Abstract
New deep, high-resolution Halpha imagery from the UK Schmidt Telescope (UKST) Unit's Halpha survey of the Southern Galactic Plane reveals the presence of a faint, highly circular, planetary nebula (PN) surrounding a very long-period variable star (now known as V1018 Sco), first discovered as a 1612-MHz OH maser, OH354.88-0.54. The nebular phase-lag distance, diameter and radial velocity are 3.2 kpc, 0.3 pc and 13 km s^-1, respectively. Combining the maser attributes with near-, mid- and far-infrared data and with our optical spectrum of the ring we conclude that the object was an intermediate-mass asymptotic giant branch (AGB) star (initial stellar mass >= 4M_solar) in which the fast wind has recently turned on, ionizing previously shed circumstellar material. Hence, we speculate that we may be witnessing a hitherto unobserved phase of PN evolution, in which a PN has only recently started to form around a star that is unequivocally still in its AGB phase. eprintid: arXiv:astro-ph/0412175	Comments: Spectral type was set to: ""S"", where only one peak was found. ""D"", where two peaks were found. Velocity resolution: 0.18 km/s Flux densities are taken from an average profile

Abstract

New deep, high-resolution Halpha imagery from the UK Schmidt Telescope (UKST) Unit's Halpha survey of the Southern Galactic Plane reveals the presence of a faint, highly circular, planetary nebula (PN) surrounding a very long-period variable star (now known as V1018 Sco), first discovered as a 1612-MHz OH maser, OH354.88-0.54. The nebular phase-lag distance, diameter and radial velocity are 3.2 kpc, 0.3 pc and 13 km s^-1, respectively. Combining the maser attributes with near-, mid- and far-infrared data and with our optical spectrum of the ring we conclude that the object was an intermediate-mass asymptotic giant branch (AGB) star (initial stellar mass >= 4M_solar) in which the fast wind has recently turned on, ionizing previously shed circumstellar material. Hence, we speculate that we may be witnessing a hitherto unobserved phase of PN evolution, in which a PN has only recently started to form around a star that is unequivocally still in its AGB phase. eprintid: arXiv:astro-ph/0412175

Comments:
Spectral type was set to:
""S"", where only one peak was found.
""D"", where two peaks were found.

Velocity resolution: 0.18 km/s
Flux densities are taken from an average profile

Input tables: Table 1, Figure 2 and Section 3.1
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Detection table from Cohen et al. (2005)

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ID	Obs. RA	Obs. Dec	l	b	Group id	Source name	Frequency	V_range	V_peak	F_peak	List	Detection	Class	Dist. (parallax)	Ref.
	(J2000)	(J2000)	(deg.)	(deg.)			(MHz)	(km/s)	(km/s)	(Jy)		Yes/No		(kpc)
1	17 35 2.7	-33 33 29.4	354.8838	-0.5387	G354.884-0.538	OH354.88-0.54	1612	29.8	-5.5	91.000	ENG15	+H₂O +OH +SiO	EVOLVED		COH05

DSS colored	2MASS colored	WISE colored
SDSS color	IRAC color I1,I2,I4	GLIMPSE 360
PACS color (70-160 um)	SPIRE color (250-500 um)	NVSS (1.4GHz)
ATLASGAL 870 um	ATLASGAL 870 um + Planck	Bolocam 1.1 mm
UKIDSS K Download UKIDSS K FITS	2MASS K Download 2MASS K FITS

select MAX(oh_data_all.ra_hms) as ra_hms,MAX(oh_data_all.dec_dms) as dec_dms,MAX(oh_data_all.source_name) as source_name,MAX(oh_data_all.ra) as ra,MAX(oh_data_all.dec) as dec,MAX(oh_data_all.l) as l,MAX(oh_data_all.b) as b,MAX(oh_data_all.grp) as grp,MAX(oh_data_all.other_name) as other_name,MAX(oh_data_all.other_desc) as other_desc,BOOL_OR(thermal) as thermal,MAX(oh_data_all.freq) as freq,MAX(oh_data_all.vrange) as vrange,MAX(oh_data_all.vpeak) as vpeak,MAX(oh_data_all.peak) as peak,MAX(oh_data_all.fwhm) as fwhm,MAX(oh_data_all.int) as int,MAX(oh_data_all.rms) as rms,MAX(oh_data_all.units) as units,MAX(oh_data_all.units_rms) as units_rms,MAX(oh_data_all.date_txt) as date_txt,MAX(oh_data_all.telescope_ref) as telescope_ref,MAX(oh_data_all.telescope_conf) as telescope_conf,MAX(oh_data_all.v_step) as v_step,MAX(oh_data_all.beam) as beam,MAX(oh_data_all.beam_maj) as beam_maj,MAX(oh_data_all.beam_min) as beam_min,MAX(oh_data_all.beam_pa) as beam_pa,MAX(oh_data_all.ref) as ref,MAX(oh_data_all.list_ref) as list_ref,MAX(oh_data_all.ascii) as ascii,MAX(oh_data_all.url) as url,MAX(oh_data_all.image) as image,MAX(oh_data_all.image2) as image2,MAX(oh_data_all.image3) as image3,MAX(oh_data_all.descr) as descr,MAX(oh_data_all.id) as id,BOOL_OR(mjy_flag) as mjy_flag,BOOL_OR(rms_mjy_flag) as rms_mjy_flag,MAX(oh_data_all.dist) as dist,1 as dist_parallax,MAX(oh_data_all.date_txt) as date_txt,MAX(line_det) as line_det,MAX(type) as type,MAX(simbad_types_cat) as simbad_types_cat FROM oh_data_all  LEFT JOIN all_objects_withmet ON oh_data_all.grp=all_objects_withmet.group_name LEFT JOIN object_categories ON all_objects_withmet.group_name = object_categories.group_name_cat AND object_categories.tbl_cat = 'all_objects_withmet' LEFT JOIN transitions ON oh_data_all.line=transitions."Line"  WHERE ref ilike 'COH05' AND detected=true AND hide=false GROUP BY ref

select oh_data_all.ra_hms,oh_data_all.dec_dms,oh_data_all.source_name,oh_data_all.ra,oh_data_all.dec,oh_data_all.l,oh_data_all.b,oh_data_all.grp,oh_data_all.other_name,oh_data_all.other_desc,oh_data_all.thermal,oh_data_all.freq,oh_data_all.vrange,oh_data_all.vpeak,oh_data_all.peak,oh_data_all.fwhm,oh_data_all.int,oh_data_all.rms,oh_data_all.units,oh_data_all.units_rms,oh_data_all.date_txt,oh_data_all.telescope_ref,oh_data_all.telescope_conf,oh_data_all.v_step,oh_data_all.beam,oh_data_all.beam_maj,oh_data_all.beam_min,oh_data_all.beam_pa,oh_data_all.ref,oh_data_all.list_ref,oh_data_all.ascii,oh_data_all.url,oh_data_all.image,oh_data_all.image2,oh_data_all.image3,oh_data_all.descr,oh_data_all.id,oh_data_all.mjy_flag,oh_data_all.rms_mjy_flag,oh_data_all.dist,oh_data_all.dist_parallax,oh_data_all.date_txt,line_det,type,simbad_types_cat FROM oh_data_all   LEFT JOIN all_objects_withmet ON oh_data_all.grp=all_objects_withmet.group_name LEFT JOIN object_categories ON all_objects_withmet.group_name = object_categories.group_name_cat AND object_categories.tbl_cat = 'all_objects_withmet' LEFT JOIN transitions ON oh_data_all.line=transitions."Line"  WHERE ref ilike 'COH05' AND detected=true AND hide=false ORDER BY detected DESC,id

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COH05 - A circular planetary nebula around the OH/IR star OH354.88-0.54 (V1018 Sco)

View as list of objects

Detection table from Cohen et al. (2005)