2017ApJ...844L...3Z

Query : 2017ApJ...844L...3Z

2017ApJ...844L...3Z - Astrophys. J., 844, L3-L3 (2017/July-3)

Anomalous distributions of primary cosmic rays as evidence for time-dependent particle acceleration in supernova remnants.

ZHANG Y., LIU S. and YUAN Q.

Abstract (from CDS):

Recent precise measurements of cosmic-ray (CR) spectra show that the energy distribution of protons is softer than those of heavier nuclei, and there are spectral hardenings for all nuclear compositions above ∼200 GV. Models proposed for these anomalies generally assume steady-state solutions of the particle acceleration process. We show that if the diffusion coefficient has a weak dependence on the particle rigidity near shock fronts of supernova remnants (SNRs), time-dependent solutions of the linear diffusive shock acceleration at two stages of SNR evolution can naturally account for these anomalies. The high-energy component of CRs is dominated by acceleration in the free expansion and adiabatic phases with enriched heavy elements and a high shock speed. The low-energy component may be attributed to acceleration by slow shocks propagating in dense molecular clouds with low metallicity in the radiative phase. Instead of a single power-law distribution, the spectra of time-dependent solutions soften gradually with the increase of energy, which may be responsible for the "knee" of CRs.

Journal keyword(s): acceleration of particles - cosmic rays - ISM: supernova remnants - shock waves - shock waves

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	SNR G347.3-00.5	SNR	17 12 27	-39 41.2			12.27			~	761	1

Query : 2017ApJ...844L...3Z

Basic data :

SNR G347.3-00.5 -- SuperNova Remnant

gam (2018A&A,1FGL,...), X (2022MNRAS,RX,...), SNR (2009BASI,SNR), BL? (2021MNRAS), V* (2012A&A), SR? (2014BASI)

17 12 27.0 -39 41 12 [ ] D 2012ApJ...756....5L

17 08 59.1 -39 37 38 [ ]

347.2695 -00.2569 [ ]

65.0 55.0 ~ (Rad) D 2014BASI...42...47G

V 12.27 [0.07] C 2012A&A...548A..79A

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

`SNR G347.3-00.5`	`4FGL J1713.5-3945e`	`HESS J1713-397`	`TeV J1713-397`
`1FGL J1711.7-3944c`	`1FHL J1713.5-3951`	`RX J1713.7-3946`	`1WGA J1713.4-3946`
`2FGL J1712.4-3941`	`2FHL J1713.5-3945e`	`1RXS J171333.1-394544`	`[KRL2007b] 226`
`3FGL J1713.5-3945e`	`3FHL J1713.5-3945e`	`SWIFT J1711.8-3935`

References (761 between 1850 and 2026) (Total 761)
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 :

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

Data at NED - NASA/IPAC Extragalactic Database : SNR G347.3-00.5

Link by name to the catalogue in VizieR :

1RXS J171333.1-394544

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 2017ApJ...844L...3Z and select 'bookmark this link' or equivalent in the popup menu