2025PASJ...77.1393F

Query : 2025PASJ...77.1393F

2025PASJ...77.1393F - Publ. Astron. Soc. Jap., 77, 1393-1405 (2025/December-0)

Clumpy-gas radiation hydrodynamics: Formulation.

FUKUE J.

Abstract (from CDS):

Various astrophysical outflows from luminous active objects are supposed to be inhomogeneous in either form porous or clumpy. We newly construct the basic equations describing clumpy-gas radiation hydrodynamics (CRHD), where a lot of clumps/cloudlets coexist with the tenuous ambient gas. Both are affected by the radiative force from the luminous source, and interact with each other via the drag force due to ram pressure. Since the radiative force acting on the clump is smaller than that on the ambient gas, clumps are generally less accelerated in winds/outflows. Furthermore, as the optical depth of cloudlets becomes higher, the efficiency decreases. We present several simple applications, including a vertical flow, a spherical wind, spherical accretion, and a simple wave. Since the present formulation is the simplified one under the nonrelativisitc treatment, there is plenty of room for further development.

Abstract Copyright: © The Author(s) 2025. Published by Oxford University Press on behalf of the Astronomical Society of Japan. All rights reserved. For commercial re-use, please contact for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site-for further information please contact

Journal keyword(s): accretion, accretion disks - galaxies: active - hydrodynamics - radiation: dynamics - stars: winds, outflows

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 QSO B1725-142 QSO 17 28 19.7893499760 -14 15 55.854918288   14.69 14.03 13.7   ~ 362 0

Query : 2025PASJ...77.1393F

Basic data :
QSO B1725-142 -- Quasar
Other object types: otypes_help 		QSO (2010A&A,QSO,...), X (RX,1RXS,...), AGN (2012MNRAS), Sy1 (2012MNRAS), G (6dFGS), * (Gaia), Rad (NVSS), UV (UVQS), IR (IRAS)
ICRS coord. (ep=J2000) : 		17 28 19.7893499760 -14 15 55.854918288 (Optical) [ 0.0181 0.0139 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		17 25 29.2209557175 -14 13 31.621904342 [ 0.0181 0.0139 90 ]
Gal coord. (ep=J2000) : 		010.3921641157749 +11.1635704912558 [ 0.0181 0.0139 90 ]
Proper motions mas/yr : 		0.028 -0.036 [0.023 0.015 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 50158 [~] / z(emission) 0.184 [~] / cz 55162 [~]
   (Opt) D 2016ApJ...818..113N
Fluxes (4) :
B 14.69 [~] D 2010A&A...518A..10V
V 14.03 [~] D 2010A&A...518A..10V
R 13.7 [~] E 2010MNRAS.401.1151M
G 14.090639 [0.003350] C 2020yCat.1350....0G
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Identifiers (19) :
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QSO B1725-142 PDS 456 2XMM J172819.7-141555 [VV2010] J172819.9-141556
6dFGS gJ172819.8-141556 QSO J1728-1415 XSS J17276-1359 [VV98] J172819.8-141256
IRAS 17254-1413 RX J1728.3-1416 [VV2000] J172819.8-141256 Gaia DR2 4137524313328406144
LQAC 262-014 001 1RXS J172819.3-141600 [VV2003] J172819.9-141556 Gaia DR3 4137524313328406144
NVSS J172819-141555 UVQS J172819.79-141555.8 [VV2006] J172819.9-141556

References (362 between 1850 and 2026) (Total 362)
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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Collections of Measurements Description of Measurements

Velocities : 4    PM : 2   

   

Observing logs
Herschel : 3    ISO : 3    XMM : 1   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : QSO B1725-142

Link by name to the catalogue in VizieR :

IRAS 17254-1413 NVSS J172819-141555 1RXS J172819.3-141600 Gaia DR2 4137524313328406144 Gaia DR3 4137524313328406144

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