2022RNAAS...6..262M

Query : 2022RNAAS...6..262M

2022RNAAS...6..262M - Research Notes of the AAS, 6, 262 (2022/December-0)

Planetary Line-to-accretion Luminosity Scaling Relations: Extrapolating to Higher-order Hydrogen Lines.

MARLEAU G.-D. and AOYAMA Y.

Abstract (from CDS):

Aoyama et al. provided scaling relations between hydrogen-line luminosities and the accretion luminosity for planetary-mass objects. These fits should be an improvement over blind extrapolations of stellar relations. The fits go up only to the n = 8 electron energy level, but higher-n Balmer lines have been observed in the near-UV with UVES. We extend the scaling relations to higher-n levels for the Balmer and other series by fitting the fit coefficients (a, b) themselves and extrapolating them. Within the assumption of an accretion shock as the source of line emission, these fits should be robust for accreting planetary-mass objects.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Accretion - Scaling relations - Extrasolar gaseous giant planets - H I line emission - Exoplanet formation - Classical T Tauri stars

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 CD-40 8434b Pl 14 08 10.1545500744 -41 23 52.573291080           ~ 295 0

Query : 2022RNAAS...6..262M

Basic data :
CD-40 8434b -- Extra-solar Planet
Other object types: otypes_help 		Pl (), Pl? (2018ApJ), * (CD)
ICRS coord. (ep=J2000) : 		14 08 10.1545500744 -41 23 52.573291080 (Optical) [ 0.0172 0.0157 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		14 05 05.7316863096 -41 09 38.061150800 [ 0.0172 0.0157 90 ]
Gal coord. (ep=J2000) : 		318.0621224576488 +19.2084976688999 [ 0.0172 0.0157 90 ]
Proper motions mas/yr : 		-29.697 -24.041 [0.021 0.021 90] A 2020yCat.1350....0G
Parallaxes (mas): 		8.8975 [0.0191] A 2020yCat.1350....0G
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CD-40 8434b PDS 70b

References (295 between 1850 and 2026) (Total 295)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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CD-40 8434b

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