Identification of planetary and proto-planetary nebulae candidates through akari infrared photometry

TL;DR

This study uses AKARI infrared photometry to identify new planetary and proto-planetary nebulae candidates by analyzing their color properties and morphological features, resulting in a list of promising objects for further study.

Contribution

The paper introduces a novel method using AKARI infrared data and color-color diagrams to efficiently identify potential PNe and PPNe candidates, expanding the catalog of known objects.

Findings

Identified 65 promising PNe and PPNe candidates.

High concentration of known PNe and PPNe in specific color-color regions.

Validated candidates through SED and morphological analysis.

Abstract

We utilized photometric data from the space telescope AKARI to identify potential planetary nebulae (PNe) and proto-planetary nebulae (PPNe) candidates. Using the colour-colour diagram, we found a region with a high concentration of established PNe and PPNe, comprising about 95% of the objects. Based on this, we identified 67 objects within this region that lack definitive classification in existing literature, suggesting they are promising candidates. We conducted Spectral Energy Distribution (SED) analysis and morphological investigations using imagery from various observatories and satellites. Finally, we present a list of 65 potential PNe and PPNe candidates.