The Isaac Newton Telescope Photometric H-alpha Survey (Iphas) is currently mapping the Northern Galactic plane reaching to r'=20 mag with typically 1" resolution. Hundreds of Planetary Nebulae (PNe), both point-like and resolved, are
What are the unique morphological features of IPHAS PN-1?IPHAS PN-1 exhibits a compact elliptical ring, inner lobes, and faint outer bipolar lobes extending over 100′′. This complex geometry categorizes it among the rare quadrupolar nebulae.How does IPHAS improve upon previous planetary nebula surveys?The IPHAS offers improved spatial resolution and a comprehensive photometric Hα mapping of 1800 square degrees. It is estimated to discover several hundred new planetary nebulae with lower surface brightness.What are the estimated physical properties of the nebula's central star?The central star exhibits broad Hα emission with a flux of I Hα = 2.5×10^-15 erg cm^-2 s^-1. Its environment suggests high density conditions exceeding N_e > 10^10 cm^-3, indicative of a complex evolution.
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1920253520627847https://smlouvy.gov.cz/smlouva/206278472022-06-08T10:37:34 02:00ukbwcxdČeská republika - Ministerstvo obrany60162694Česká republika - Ministerstvo obrany, Tychonova 221/1, 160 00 Praha 6Ředitelství výcviku a doktrín Vyškovq6…