J/A+A/691/A330ivo://CDS.VizieR/J/A+A/691/A330doi:10.26093/cds/vizier.36910330CDSBianchi S.2025-02-27T20:02:12Z2024-11-25T09:05:50ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frmilky-way-galaxyinterstellar-mediumDust grains in the interstellar medium are heated by the integrated radiation from stars in the Milky Way. Thus, knowledge of the local interstellar radiation field (LISRF) is necessary to interpret observations of dust emission in the infrared and constrain (some) properties of interstellar grains. The LISRF representation that is most widely used in dust modeling still dates back to the seminal works of Mezger et al. (1982A&A...105..372M) and Mathis et al. (1983A&A...128..212M). A new version of the LISRF is presented here, starting from the photometry of the Gaia Data Release 3 (DR3) and revisiting the available data. This dataset includes observations from the Pioneer 10 and 11 probes. The LISRF contribution by direct starlight was estimated in the Gaia bands by summing fluxes of all stars in DR3. The LISRF was extrapolated from the optical to the ultraviolet and near-infrared, using the astrophysical parameters provided by DR3 for a subsample of Gaia stars. The correlation between dust emission at 100um and residual diffuse emission in the Pioneer and other available maps was exploited to derive the contribution of dust-scattered starlight to the LISRF. The new LISRF is significantly redder and emits ~30% more energy than the old model. The old LISRF is almost a factor two lower in the near-infrared (NIR), while, in the optical, it accounts only for direct starlight. For |b|<50 degree diffuse starlight contributes on average to ~25% of the total radiation, which is three times more than what can be derived using literature estimates at high Galactic latitudes. Conclusions: The new LISRF can modify the predicted mid-infrared (MIR) dust emission beyond the uncertainties normally assumed between dust models and observational constraints. These differences should be taken into account to redefine the properties of small grains and of carriers of the MIR emission bands.2024A&A...691A.330Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/691/A330CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/691/A330https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/691/A330http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/691/A330https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/691/A330https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/691/A330http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/691/A330GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/691/A330/j_lambdaLocal interstellar radiation field (LISRF)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaWavelengthumem.wldoubleTotalTotal local interstellar radiation field (LISRF) (in W/(m^3^/sr))W.m**-3.sr**-1spect.line.intensitydoublee_TotalUncertainty on the total LISRF (in W/(m^3^/sr))W.m**-3.sr**-1stat.errordoubleDirectDirect starlight component of local interstellar radiation field (LISRF) (in W/(m^3^/sr))W.m**-3.sr**-1spect.line.intensitydoublee_DirectUncertainty on direct starlight (in W/(m^3^/sr))W.m**-3.sr**-1stat.errordoubleJ/A+A/691/A330/i_lambda*Sky maps of the total sky surface brightnessI11i_lambda map for 11th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI12i_lambda map for 12th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI13i_lambda map for 13th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI14i_lambda map for 14th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI15i_lambda map for 15th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI16i_lambda map for 16th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI17i_lambda map for 17th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI18i_lambda map for 18th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI19i_lambda map for 19th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI20i_lambda map for 20th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI21i_lambda map for 21th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI22i_lambda map for 22th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI23i_lambda map for 23th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI24i_lambda map for 24th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI25i_lambda map for 25th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI26i_lambda map for 26th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI27i_lambda map for 27th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI28i_lambda map for 28th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI29i_lambda map for 29th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI30i_lambda map for 30th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI31i_lambda map for 31th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI32i_lambda map for 32th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI33i_lambda map for 33th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI34i_lambda map for 34th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI35i_lambda map for 35th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI36i_lambda map for 36th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI38i_lambda map for 38th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI39i_lambda map for 39th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI40i_lambda map for 40th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI41i_lambda map for 41th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI42i_lambda map for 42th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI43i_lambda map for 43th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI44i_lambda map for 44th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI45i_lambda map for 45th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI46i_lambda map for 46th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI47i_lambda map for 47th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI48i_lambda map for 48th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI49i_lambda map for 49th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI50i_lambda map for 50th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI51i_lambda map for 51th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI52i_lambda map for 52th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI53i_lambda map for 53th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI54i_lambda map for 54th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI55i_lambda map for 55th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI56i_lambda map for 56th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI57i_lambda map for 57th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI58i_lambda map for 58th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI59i_lambda map for 59th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI60i_lambda map for 60th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI61i_lambda map for 61th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI62i_lambda map for 62th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI63i_lambda map for 63th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI64i_lambda map for 64th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI65i_lambda map for 65th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI66i_lambda map for 66th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI67i_lambda map for 67th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI68i_lambda map for 68th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI69i_lambda map for 69th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI70i_lambda map for 70th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI71i_lambda map for 71th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI72i_lambda map for 72th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI73i_lambda map for 73th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI74i_lambda map for 74th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI75i_lambda map for 75th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI76i_lambda map for 76th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI77i_lambda map for 77th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI78i_lambda map for 78th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI79i_lambda map for 79th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI80i_lambda map for 80th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI81i_lambda map for 81th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI82i_lambda map for 82th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI83i_lambda map for 83th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI84i_lambda map for 84th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI85i_lambda map for 85th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI86i_lambda map for 86th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI87i_lambda map for 87th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI88i_lambda map for 88th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI89i_lambda map for 89th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI90i_lambda map for 90th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI91i_lambda map for 91th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI92i_lambda map for 92th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI93i_lambda map for 93th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI94i_lambda map for 94th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI95i_lambda map for 95th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI96i_lambda map for 96th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI97i_lambda map for 97th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI98i_lambda map for 98th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI99i_lambda map for 99th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintI01i_lambda map for 1st lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI02i_lambda map for 2th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI03i_lambda map for 3rd lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI04i_lambda map for 4th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI05i_lambda map for 5th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI06i_lambda map for 6th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI07i_lambda map for 7th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI08i_lambda map for 8th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI09i_lambda map for 9th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI10i_lambda map for 10th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleI37i_lambda map for 37th lambda (in W/(m^3^*sr))W.m**-3.sr**-1stat.fit.paramdoubleJ/A+A/691/A330/pioneer*Maps of the sky surface brightness in the Pioneer B_IPP band R_IPP bandsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBIPPMap in the Pioneer B_IPP band (W/(m^3*sr))W.m**-3.sr**-1stat.fit.paramdoubleRIPPMap in the Pioneer R_IPP band (W/(m^3*sr))W.m**-3.sr**-1stat.fit.paramdouble