2021ApJ...920...85M

Query : 2021ApJ...920...85M

2021ApJ...920...85M - Astrophys. J., 920, 85-85 (2021/October-3)

The sonora brown dwarf atmosphere and evolution models. I. Model description and application to cloudless atmospheres in rainout chemical equilibrium.

MARLEY M.S., SAUMON D., VISSCHER C., LUPU R., FREEDMAN R., MORLEY C., FORTNEY J.J., SEAY C., SMITH A.J.R.W., TEAL D.J. and WANG R.

Abstract (from CDS):

We present a new generation of substellar atmosphere and evolution models, appropriate for application to studies of L-, T-, and Y-type brown dwarfs and self-luminous extrasolar planets. The models describe the expected temperature-pressure profiles and emergent spectra of atmospheres in radiative-convective equilibrium with effective temperatures and gravities within the ranges 200 <= T_eff <= 2400 K and 2.5≤ logg≤ 5.5. These ranges encompass masses from about 0.5 to 85 Jupiter masses for a set of metallicities ([M/H] = - 0.5 to + 0.5), C/O ratios (from 0.5 to 1.5 times that of solar), and ages. These models expand the diversity of model atmospheres currently available, notably to cooler effective temperatures and greater ranges in C/O. Notable improvements from past such models include updated opacities and atmospheric chemistry. Here we describe our modeling approach and present our initial tranche of models for cloudless, chemical equilibrium atmospheres. We compare the modeled spectra, photometry, and evolution to various data sets.

Journal keyword(s): Brown dwarfs - T dwarfs - L dwarfs - L subdwarfs - T subdwarfs - Y dwarfs - Stellar atmospheres

Simbad objects: 1

Full paper

View the references in ADS

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	HD 42581B	BD*	06 10 34.80	-21 52 00.0						T6.5	549	0

Query : 2021ApJ...920...85M

Basic data :

HD 42581B -- Brown Dwarf

* (CNS5,GJ,...), ** (2024ApJ,**,...), BD* (1999ApJ), Rad ([B2006])

06 10 34.80 -21 52 00.0 [ ] C 2009AJ....137....1F

06 08 28.33 -21 50 42.7 [ ]

228.61456 -18.43930 [ ]

-137.0 -714.1 [0.9 0.6 0] D 2009AJ....137....1F

173.19 [1.12] C 2012ApJ...752...56F

T6.5 C 2000ApJ...531L..57B

J 14.01 [0.05] C 2012ApJ...752...56F

H 14.36 [0.05] C 2012ApJ...752...56F

K 14.36 [0.05] C 2012ApJ...752...56F

Overlay

points in this preview

2MASS DSS

All

(CDSPortal)

Send to

An access of full data is available using the icon Vizier near the identifier of the catalogue

` NAJ 1B`**	`GJ 229 B`	`8pc 173.19B`	`[B2006] J061035.1-215117`
`CNS5 1529`	`HD 42581B`	`WDS J06106-2152B`

References (549 between 1850 and 2026) (Total 549)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

Follow new references on this object

Collections of Measurements

Observing logs

External archives :

Link by name to the catalogue in VizieR :

GJ 229 B HD 42581B WDS J06106-2152B

Search by coordinates in Vizier (radius: 15 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

The annotation server is currently not available. Sorry for any inconvenience

To bookmark this query, right click on this link: simbad:objects in 2021ApJ...920...85M and select 'bookmark this link' or equivalent in the popup menu