THREE DIMENSIONAL MAPS OF INTERSTELLAR MEDIUM: GAIA IMPACT Letizia - PowerPoint PPT Presentation

THREE DIMENSIONAL MAPS OF INTERSTELLAR MEDIUM: GAIA IMPACT Letizia Capitanio GEPI/ Observatoire de Paris R. Lallement 1 , J.L. Vergely 2 , M. Elyajouri 1 , C. Babusiaux 1 , L. Ruiz-Dern 1 , F. Arenou 1 , A. Monreal-Ibero 1,3 1) GEPI/ Observatoire de Paris, 2) ACRI/ST, Sofia-Antipolis, 3) Instituto de Astrofisica de Canarias, La Laguna, Tenerife 3D inversion maps Since DR1 Preparation for future The science of Gaia and future challenges - LUND

REDDENING EXTINCTION ABSORPTION LINES The science of Gaia and future challenges - LUND

RECONSTRUCTION SIGHTLINE BY SIGHTLINE TARGET STARS IN A NARROW SOLID ANGLE ASSUME ALL TARGETS ALIGNED - - SEVERAL METHODS TO RECONSTRACT REDDENING VS DISTANCE The science of Gaia and future challenges - LUND

PAN-STARRS MAP - Green15 l = 160 b = -15 Excellent angular - resolution (5') Reliable absolute data - The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (3/16)

PAN-STARRS MAP l = 90 Lower distance - l = 0 resolution No local values - Only north hemisphere - The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (4/19)

RECONSTRUCTION SIGHTLINE BY FULL 3D INVERSION SIGHTLINE 3D DUST OPACITY DISTRIBUTION P' P E(B-V): COLUMN DENSITY - ρ (P) ρ (P'): 3D INFORMATION - PRIOR - The science of Gaia and future challenges - LUND

SIMULATED 3D DISTRIBUTION (~23000 STELLAR TARGETS) INPUT DISTRIBUTION OUTPUT MAP volumes. • RRRADFADF - low spatial resolution - spreading of opacities in large volumes - ortho-radial information used, - adapted to small distances The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (6/19)

OLD MAPS - LALLEMENT2014 l = 90 22467 targets 22 % Hipparcos distances 78% photometric l = 0 The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (7/19)

DR1 DISTANCES! 23444 targets ~80% Gaia TGAS distances 20% photometric The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (8/19)

COMPARISON : OLD DISTANCES VS DR1 DISTANCES PRE-Gaia POST-Gaia The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (9/19)

DIBs AS MATTER TRACER? The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (11/19)

DIBs AS MATTER TRACER? 2MASS J00195284+5835319 1.02 1.00 Normalized Flux 0.98 0.96 Elyajouri et al.,2017 0.94 15260 15265 15270 15275 15280 Wavelength (Å) E(B-V) mag ≈ EW(Ang) * 3.3 Zasowski et al, 2015 The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (10/19)

WAITING FOR DR3 SPECTRA ~ 28000 targets ~5000 DIB-BASED EXCESS OF COLOUR The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (12/19)

NON-LOCAL ISM: PAN-STARRS MAP The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (13/19)

MAP with PAN-STARRS PRIOR The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (14/19)

NEW APOGEE CALIBRATION The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (15/19)

4 6 FROM 10 TO 10 NORTH%GAL%POLE b=+90 b=+90 300 ~23 000 200 100 l=160° 160, 160,0 sun PRE-GAIA 0 -400 -200 0 200 400 600 800 1000 GAL.%PLANE -100 -200 -300 b=+90 b=+90 300 200 100 POST-GAIA 160, 160,0 sun 0 -400 -200 0 200 400 600 800 1000 -100 -200 -300 b=+90 b=+90 300 200 100 160, 160,0 DIB APOGEE sun 0 -400 -200 0 200 400 600 800 1000 -100 -200 -300 b=+90 b=+90 300 200 100 160, 160,0 sun PANSTARRS 0 -400 -200 0 200 400 600 800 1000 -100 -200 -300 b=+90 b=+90 300 200 100 160,0 160, sun APOGEE SPECTROPHOM 0 ~60 000 -400 -200 0 200 400 600 800 1000 -100 -200 -300 The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (16/19)

4 6 FROM 10 TO 10 300 200 100 0 -100 -200 -300 -400 -200 0 200 400 600 800 1000 WITH 20 000 LAMOST dist/extinction 0°> b >-35° 155°>l>180° Wang et al, 2016 300 200 100 0 -100 -200 -300 -400 -200 0 200 400 600 800 1000 The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (17/19)

on-line TOOL: stilism.obspm.fr The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (18/19)

POST: -GAIA DISTANCES -DIB APOGEE (WITH GAIA DISTANCES) -PRIOR -POST-GAIA APOGEE CALIBRATION PRE-GAIA FUTURE... The science of Gaia and future challenges - LUND SF2A - 4/7.07.2017 - PARIS - (19/19)