2015A&A...577A.110Y


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.07CEST12:34:34

2015A&A...577A.110Y - Astronomy and Astrophysics, volume 577A, 110-110 (2015/5-1)

Dust variations in the diffuse interstellar medium: constraints on Milky Way dust from Planck-HFI observations.

YSARD N., KOEHLER M., JONES A., MIVILLE-DESCHENES M.-A., ABERGEL A. and FANCIULLO L.

Abstract (from CDS):

The Planck-HFI all-sky survey from 353 to 857 GHz combined with the IRAS data at 100 µm (3000 GHz, IRIS version of the data) show that the dust properties vary from line of sight to line of sight in the diffuse interstellar medium (ISM) at high Galactic latitude 1019≤NH<_=2.5x1020H*cm–2, for a sky coverage of ∼12%). These observations contradict the usual thinking of uniform dust properties, even in the most diffuse areas of the sky. Thus, our aim is to explain these variations with changes in the ISM properties and with evolution of the grain properties. Our starting point is the latest core-mantle dust model. This model consists of small aromatic-rich carbon grains, larger amorphous carbonaceous grains with an aliphatic-rich core and an aromatic-rich mantle, and amorphous silicates (mixture of olivine and pyroxene types) with Fe/FeS nano-inclusions covered by aromatic-rich carbon mantles. We explore whether variations in the radiation field or in the gas density distribution in the diffuse ISM could explain the observed variations. The dust properties are also varied in terms of their mantle thickness, metallic nano-inclusions, carbon abundance locked in the grains, and size distributions. We show that variations in the radiation field intensity and gas density distribution cannot explain variations observed with Planck-HFI but that radiation fields harder than the standard ISRF may participate in creating part of the observed variations. We further show that variations in the mantle thickness on the grains coupled with changes in their size distributions can reproduce most of the observations. We concurrently put a limit on the mantle thickness of the silicates, which should not exceed ∼10 to 15nm, and find that aromatic-rich mantles are definitely needed for the carbonaceous grain population with a thickness of at least 5 to 7.5nm. We also find that changes in the carbon cosmic abundance included in the grains could explain part of the variations in dust observations. Finally, we show that varying the composition of metallic nano-inclusions in the silicates cannot account for the variations, at the same time showing that the amount of FeS they contain cannot be >50% by volume. With small variations in the dust properties, we are able to explain most of the variations in the dust emission observed by Planck-HFI in the diffuse ISM. We also find that the small realistic changes in the dust properties that we consider almost perfectly match the anti-correlation and scatter in the observed β-T relation.

Abstract Copyright:

Journal keyword(s): ISM: general - dust, extinction - evolution - submillimeter: ISM

Errata: erratum vol. 593, art. C4 (2016)

Status at CDS:  

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 HD 207198 * 21 44 53.2790298387 +62 27 38.042162728 5.61 6.25 5.94 5.66 5.49 O8.5II 321 0

    Equat.    Gal    SGal    Ecl

C.D.S. - SIMBAD4 rel 1.7 - 2020.04.07CEST12:34:34

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


Basic data :
HD 207198 -- Star
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:
* (HD,AG,...), ** (CCDM,IDS,...), IR (IRAS,2MASS), UV (CEL,TD1)
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) :
21 44 53.2790298387 +62 27 38.042162728 (Optical) [ 0.0470 0.0444 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) :
21 43 30.7206804131 +62 13 46.883807341 [ 0.0470 0.0444 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) :
103.1362526306776 +06.9948907179527 [ 0.0470 0.0444 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 :
-3.536 -0.973 [0.094 0.082 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)
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  • (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) -17.60 [1.4] / z(~) -0.000059 [0.000005] / cz -17.60 [1.40]
   B 2006AstL...32..759G
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):
0.9760 [0.0534] 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;
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  • a quality letter: A=best quality -> E=worst quality, {� } =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type:
O8.5II C 2014ApJS..211...10S
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 (9) :
U 5.61 [~] C 2002yCat.2237....0D
B 6.25 [~] C 2002yCat.2237....0D
V 5.94 [~] C 2002yCat.2237....0D
R 5.66 [~] C 2002yCat.2237....0D
G 5.8222 [0.0009] C 2018yCat.1345....0G
I 5.49 [~] C 2002yCat.2237....0D
J 5.374 [0.046] C 2003yCat.2246....0C
H 5.318 [0.026] C 2003yCat.2246....0C
K 5.318 [0.017] C 2003yCat.2246....0C
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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 (37) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 207198 GOS G103.14+06.99 01 MCW 1002 UBV M 25932
AG+62 1267 GSC 04266-00826 PMC 90-93 4686 uvby98 100207198
ALS 11985 HIC 107374 PPM 23166 WDS J21449+6228A
BD+61 2193 HIP 107374 ROT 3170 WEB 19393
CCDM J21449+6228A HR 8327 SAO 19621 [HJ56] 232
CEL 5379 IDS 21422+6200 A SKY# 41463 [PGH98b] Star 5
CGO 625 IRAS 21435+6213 SW 3 Gaia DR2 2216034525806770560
GC 30473 JP11 3408 TD1 28458
GCRV 13677 LS III +62 2 TYC 4266-826-1
GEN# +1.00207198 2MASS J21445329+6227380 UBV 18691

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References (321 between 1850 and 2020) (Total 321)
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


distance : 2    velocities : 6    ROT : 5    PM : 3    Fe_H : 3    PLX : 3    MK : 23   

   

Observing logs


ISO : 1    herschel : 1    IUE : 54   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : HD 207198

Link by name to the catalogue in VizieR :

HD 207198 AG+62 1267 ALS 11985 BD+61 2193 CCDM J21449+6228A
CEL 5379 GSC 04266-00826 HIC 107374 HIP 107374 HR 8327
IRAS 21435+6213 LS III +62 2 2MASS J21445329+6227380 PPM 23166 SAO 19621
TD1 28458 TYC 4266-826-1 uvby98 100207198 WDS J21449+6228A Gaia DR2 2216034525806770560

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2020.04.07-12:34:34

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