2018A&A...617A..40B


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.03CEST23:00:34

2018A&A...617A..40B - Astronomy and Astrophysics, volume 617A, 40-40 (2018/9-1)

Spectroscopic EUV observations of impulsive solar energetic particle event sources.

BUCIK R., FLUDRA A., GOMEZ-HERRERO R., INNES D.E., KELLETT B., KUMAR R. and MACKOVJAK S.

Abstract (from CDS):


Context. Remote observations of solar flare ion acceleration are rather limited. Theoretical predictions for signatures of ion acceleration in extreme ultraviolet (EUV) line profiles have been made. Previous tests involve observations of flares with no evidence for energetic ions.
Aims. We aim to examine a source flare of impulsive (or 3He-rich) solar energetic particle events with EUV line spectroscopy.
Methods. We inspected all (more than 90) reported 3He-rich flares of the previous solar cycle 23 and found only 4 (recurrent) jets in the field of view of the Coronal Diagnostic Spectrometer (CDS) on board the Solar and Heliospheric Observatory (SOHO). The jet with the most suitable spatial and temporal coverage was analyzed in detail.
Results. Two enhanced (nonthermal) line broadenings are observed in the cooler chromospheric and transition-region lines, and they are localized near the site where the closed magnetic loops reconnect with the open magnetic field lines. The enhanced broadenings are both found at the sites with redshifts in the lines, surrounded by the region with blueshifts. One enhanced line broadening is associated with a small flare without energetic particle signatures, while another occurs just after the particle acceleration signatures of the main flare terminated.
Conclusions. The observed excess broadening does not appear to be directly related to the energetic ion production and motions. Further investigations are required that cover the critical impulsive phase of the flare, ideally with high-resolution spectrometers that are specifically pointed to the 3He-rich solar energetic particle source.

Abstract Copyright: © ESO 2018

Journal keyword(s): Sun: particle emission - Sun: flares - acceleration of particles - magnetic reconnection - techniques: imaging spectroscopy

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 - 2020
#notes
1 V* AU Mic BY* 20 45 09.5323695486 -31 20 27.241710746   10.05 8.627 9.078 6.593 M1VeBa1 893 0

    Equat.    Gal    SGal    Ecl

C.D.S. - SIMBAD4 rel 1.7 - 2020.07.03CEST23:00:34

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations


Basic data :
V* AU Mic -- Variable of BY Dra type
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types:
* (Ref,HD,...), PM* (Ref,2016ApJ...817..112S,...), X (Ref,1AXG,...), IR (AKARI,IRAS,...), ** (**,CCDM,...), V* (ASAS,1SWASP,...), UV (2EUVE,EUVE,...), Fl* ([GKL99]), BY* (Ref)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) :
20 45 09.5323695486 -31 20 27.241710746 (Optical) [ 0.0380 0.0271 90 ] A 2018yCat.1345....0G
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) :
20 42 03.7899145125 -31 31 05.589953031 [ 0.0380 0.0271 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) :
012.6546056514163 -36.8024924377353 [ 0.0380 0.0271 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr :
281.424 -359.895 [0.075 0.054 90] A 2018yCat.1345....0G
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz :
V(km/s) -4.50 [0.25] / z(~) -0.000015 [0.000001] / cz -4.50 [0.25]
   A 2011AAS...21743412C
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas):
102.8295 [0.0486] A 2018yCat.1345....0G
Spectral type is made of 3 parts: %coding is composed of 4 parts :
  • the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities;
  • a quality letter: A=best quality→E=worst quality, {� } =unknown quality %
  • a quality letter: A=best quality -> E=worst quality, {� } =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type:
M1VeBa1 C 1989ApJS...71..245K
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (11) :
B 10.05 [~] E ~
V 8.627 [0.052] C 2012AcA....62...67K
R 9.078 [0.06] D 2012yCat.1322....0Z
G 7.8404 [0.0007] C 2018yCat.1345....0G
I 6.593 [0.029] C 2012AcA....62...67K
J 5.436 [0.017] C 2003yCat.2246....0C
H 4.831 [0.016] C 2003yCat.2246....0C
K 4.529 [~] D 2010PASP..122..885S
g 9.579 [0.05] D 2012yCat.1322....0Z
r 8.636 [0.09] D 2012yCat.1322....0Z
i 7.355 [0.14] E 2012yCat.1322....0Z
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Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 2
The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

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The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (56) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 197481 EUVE J2045-31.3 PLX 4939.00 UBV 17963
** LDS 720A GCRV 12995 PM J20451-3120 UCAC4 294-224065
AKARI-IRC-V1 J2045097-312029 GEN# +1.00197481 PPM 300560 UGP 505
ASAS J204510-3120.4 GJ 803 RBS 1695 V* AU Mic
ASAS J204509-3120.3 HIC 102409 2RE J2045-312 WDS J20452-3120A
1AXG J204508-3119 HIP 102409 2RE J204510-312000 WEB 18541
CCDM J20451-3122A IDS 20390-3142 A RE J2045-312 WISEA J204509.75-312030.9
CD-31 17815 IRAS 20420-3131 RE J204509-312004 WISE J204509.76-312030.9
Ci 20 1225 IRAS F20420-3131 RX J2045.2-3120 Zkh 310
CPC 17 11323 LTT 8214 1RXS J204509.4-312023 [FS2003] 1089
CPD-31 6335 2MASS J20450949-3120266 SAO 212402 [GKL99] 394
2E 4416 MCC 824 1SWASP J204509.52-312027.2 [L91b] 329
2E 2042.0-3131 NLTT 49807 TIC 441420236 [RHG95] 3241
2EUVE J2045-31.3 PLX 4939 TYC 7457-641-1 Gaia DR2 6794047652729201024

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References (893 between 1850 and 2020) (Total 893)
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


diameter : 2    ROT : 2    V* : 4    distance : 3    velocities : 9    Fe_H : 2    PM : 5    PLX : 4    MK : 12   

   

Observing logs


ISO : 3    XMM : 1    herschel : 6    IUE : 149   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V* AU Mic

Link by name to the catalogue in VizieR :

HD 197481 AKARI-IRC-V1 J2045097-312029 CCDM J20451-3122A CD-31 17815 CPD-31 6335
2E 4416 EUVE J2045-31.3 GJ 803 HIC 102409 HIP 102409
IRAS 20420-3131 IRAS F20420-3131 2MASS J20450949-3120266 NLTT 49807 PLX 4939
PPM 300560 2RE J2045-312 2RE J204510-312000 1RXS J204509.4-312023 SAO 212402
TYC 7457-641-1 UCAC4 294-224065 V* AU Mic WDS J20452-3120A WISEA J204509.75-312030.9
WISE J204509.76-312030.9 [GKL99] 394 [L91b] 329 Gaia DR2 6794047652729201024

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2020.07.03-23:00:34

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