SIMBAD references

1995A&A...299..238V - Astronomy and Astrophysics, volume 299238-244 (1995/7-1)

Radio continuum observations of planetary nebula candidates from the northern hemisphere.

VAN DE STEENE G.C. and POTTASCH S.R.

Abstract (from CDS):

We analyzed radio continuum observations of unidentified IRAS point sources with far IR colors that are typical of planetary nebulae. These IRAS-selected planetary nebula candidates are located outside the galactic bulge and were observed with the Westerbork Radio Synthesis Telescope. We have detected 20 new planetary nebulae out of 82 observed candidates. The detected sources are very close to the galactic plane. The detection rate is highest in that part of the color-color diagram, where planetary nebulae are expected to spend most time during their evolution. The radio and IR properties are compared with PN detected in the same way in the galactic bulge and with optical planetary nebulae which fulfill the same selection criteria. On average, the IR excess of the IRAS-selected and radio detected planetary nebula candidates is higher than for the optical planetary nebulae.

Abstract Copyright: ∼

Journal keyword(s): planetary nebulae: general - radio continuum: ISM - infrared: ISM: continuum

VizieR on-line data: <Available at CDS (J/A+A/299/238): table1 table3>

Nomenclature: Table 1: [VP95] WSRT1 NN (Nos 1-43). Table 2: VSP 2-NN N=7. Table 3: [VP95] WSRT2 NN (Nos 1-39). Table 4: VSP 4-NN N=13.

CDS comments: Coordinates of VSP 2-31 (Table 2) are not consistent with those of [VP95] WSRT1 31 (table 1).

Simbad objects: 86

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