A New Statistical Distance Scale for Planetary Nebulae, Based on Gaia EDR3

Ali, A.; Algarni, E.; Mindil, A.; A., Alghamdi, S.

doi:10.1088/1674-4527/ac7545

Cited by 3 publications

(2 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Distance was assumed as a free parameter determined from the model procedure. The best model distance is 4.0 kpc, which is close to the recent calculations of 3.6 ± 0.2 kpc by Bailer-Jones et al ( 2021 ) and 4.1 kpc by Ali et al ( 2022 ) based on GAIA parallax measurements.…”

Section: P H Oto I O N I Z At I O N M O D E Lsupporting

confidence: 88%

Analysis of integral field spectroscopy observations of the planetary nebula Hen 2-108 and its central star

Marques

Monteiro

Aleman

et al. 2023

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

The study of planetary nebulae provides important constraints for many aspects of stellar and Galactic evolution. Hen 2-108 is a poorly known planetary nebula with a slight elliptical morphology and a peculiar central star (CS), which has defied classification. In this work, we present the first detailed integral field spectroscopic study of the planetary nebula Hen 2-108 and its CS. We provide spatially resolved flux maps for important emission lines, as well as diagnostic maps of extinction and electronic density and temperature. Physical conditions and chemical abundances were also calculated from the integrated spectrum. The analysis was also performed with the code satellite which uses a distinct strategy to evaluate physical and chemical properties. Both satellite and traditional procedure give consistent results, showing some variation in physical and chemical properties. We detect and measure a number of faint heavy element recombination lines from which we find a significant abundance discrepancy factor for O/H, and possibly for N/H. Pseudo 3D photoionization models were used to assist in the interpretation with results supporting the low-ionisation nature of this nebula, indicating a CS with Teff = 40 kK and a shell structure. The spectrum of the CS has been analysed with a detailed model for expanding atmospheres to infer stellar parameters, finding that it is a [Of/WN8] type with T* = 41.5 kK, making it a new addition to a small set (∼20) of rare objects.

show abstract

Section: P H Oto I O N I Z At I O N M O D E Lsupporting

confidence: 88%

Analysis of integral field spectroscopy observations of the planetary nebula Hen 2-108 and its central star

Marques

Monteiro

Aleman

et al. 2023

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

show abstract

“…Using the current release, we were able to detect the RVs for 51 PNe, including updated values for 14 PNe recorded by Ali et al (2022). Table 3 lists the newly detected RVs by Gaia DR3 and those obtained by Durand et al (1998).…”

Section: Radial Velocity Of Pn Cssmentioning

confidence: 99%

The Variability and Radial Velocity of Planetary Nebula Central Stars

Ali¹,

Mindil²

2023

Res. Astron. Astrophys.

Self Cite

View full text Add to dashboard Cite

The extremely accurate estimates of stellar variability and radial velocity in the Gaia Data Release 3 (Gaia DR3) have enabled us to examine the close binarity and radial velocity (RV) of central stars (CSs) of planetary nebulae (PNe). This study is twofold: (1) searching for new close binary CSs candidates to better understand how binarity affects the formation and evolution of PNe; and (2) extending the sample size of known RV of PNe in order to understand their kinematics and the dynamics of the Milky Way. As a target sample, we used all true, possible, and likely PNe available in the literature. Then, we looked for their matched Gaia DR3 sources that provide measurements of variability and RV. As a result, we detected the first large collection of trustworthy photometric variability of 26 symbiotic stars (SySts) and 82 CSs. In this CS group, there are 24 sources already classified as true close binary CSs in the literature. Hence, we discovered 58 new close binary CS candidates. This close binary (CB) sample represents more than half of what is currently available in the literature. In addition, we identified the radial velocities for 51 PNe. To our knowledge, 24 of these were measured for the first time. The RV measurements predicted by Gaia, based on the Doppler shift of the CS absorption lines, and those derived from nebular emission lines, show satisfactory agreement except for a few extremely high-velocity PNe.

show abstract

New Catalog of Distances to Planetary Nebulae Based on Gaia Parallaxes and Statistical Distances

Hernández-Juárez,

Rodríguez,

Peña

2024

RMxAA

View full text Add to dashboard Cite

We have developed a method to determine the most reliable distances for a large group of planetary nebulae. For this purpose, we analyze the distances obtained from Gaia parallaxes and three determinations of statistical distances. The most reliable distance is derived for 2211 objects, and uncertainties for these distances are calculated in a homogeneous way. Using our most reliable distances, we compare the distributions of Galactic heights of hydrogen-poor and hydrogen-rich central stars of planetary nebulae. We find that [WR] central stars are closer to the Galactic plane than hydrogen-rich central stars and than other hydrogen-poor central stars. The latter have a similar distribution to hydrogen-rich central stars, which is significantly different from the one of [WR] central stars. This result disagrees with the proposed evolutionary sequence for hydrogen-poor central stars.

show abstract

A New Statistical Distance Scale for Planetary Nebulae, Based on Gaia EDR3

Cited by 3 publications

References 40 publications

Analysis of integral field spectroscopy observations of the planetary nebula Hen 2-108 and its central star

Analysis of integral field spectroscopy observations of the planetary nebula Hen 2-108 and its central star

The Variability and Radial Velocity of Planetary Nebula Central Stars

New Catalog of Distances to Planetary Nebulae Based on Gaia Parallaxes and Statistical Distances

Contact Info

Product

Resources

About