Know Thy Starrrrr (and not-thy-starrrrr), Know Thy Planet

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Presentation transcript:

Know Thy Starrrrr (and not-thy-starrrrr), Know Thy Planet Primary Collaborators Chas Beichman (NExScI) Chris Gelino (NExScI) Yossi Shvartzvald (JPL) Jessica Lu (UC Berkeley) JP Beaulieu (IAP) David Bennett (Goddard) Calen B. Henderson ExSoCal 2018 Caltech/IPAC-NExScI

Know Thy Starrrrr (and not-thy-starrrrr), Know Thy Planet Primary Collaborators Chas Beichman (NExScI) Chris Gelino (NExScI) Yossi Shvartzvald (JPL) Jessica Lu (UC Berkeley) JP Beaulieu (IAP) David Bennett (Goddard) Calen B. Henderson ExSoCal 2018 Caltech/IPAC-NExScI

Know Thy Starrrrr (and not-thy-starrrrr), Know Thy Planet Primary Collaborators Chas Beichman (NExScI) Chris Gelino (NExScI) Yossi Shvartzvald (JPL) Jessica Lu (UC Berkeley) JP Beaulieu (IAP) David Bennett (Goddard) Calen B. Henderson ExSoCal 2018 Caltech/IPAC-NExScI Calen B. Henderson

Anyone who dislikes pirate puns Know Thy Starrrrr (and not-thy-starrrrr), Know Thy Planet Anyone who dislikes pirate puns (me) Primary Collaborators Chas Beichman (NExScI) Chris Gelino (NExScI) Yossi Shvartzvald (JPL) Jessica Lu (UC Berkeley) JP Beaulieu (IAP) David Bennett (Goddard) Calen B. Henderson ExSoCal 2018 Caltech/IPAC-NExScI Calen B. Henderson

Microlensing Exoplanet Properties: Mass and Distance Ml = (θE)2 κ πrel (1) Einstein Radius: finite-source effects (ρ) astrometry

Microlensing Exoplanet Properties: Mass and Distance Ml = (θE)2 κ πrel (1) Einstein Radius: finite-source effects (ρ) astrometry Ml = πrel κ (πE)2 (2) Microlens Parallax: orbital motion observer separation

Microlensing Exoplanet Properties: Mass and Distance Ml = (θE)2 κ πrel (1) Einstein Radius: finite-source effects (ρ) astrometry Ml = πrel κ (πE)2 (2) Microlens Parallax: orbital motion observer separation Ml = f(Hl, AH,l, Ml-Ll) (3) Lens Flux: “prompt” follow-up spatially resolve lens

Microlensing Exoplanet Properties: Mass and Distance Ml = (θE)2 κ πrel (1) Einstein Radius: finite-source effects (ρ) astrometry Ml = πrel κ (πE)2 (2) Microlens Parallax: orbital motion observer separation Ml = f(Hl, AH,l, Ml-Ll) (3) Lens Flux: “prompt” follow-up spatially resolve lens After event is over!

Microlensing Exoplanet Properties: Mass and Distance Ml = (θE)2 κ πrel (1) Einstein Radius: finite-source effects (ρ) astrometry Ml = πrel κ (πE)2 (2) Microlens Parallax: orbital motion observer separation Know Thy Starrrrr… Know Thy Planet! Ml = f(Hl, AH,l, Ml-Ll) (3) Lens Flux: “prompt” follow-up spatially resolve lens After event is over!

OB140124: Spitzer Target Udalski+ (2015) ApJ, 799, 237

OB140124: Mass-distance Relations (I) Udalski+ (2015) ApJ, 799, 237

OB140124: Mass-distance Relations (II) Udalski+ (2015) ApJ, 799, 237

Beaulieu+ [incl. Henderson] (2018) AJ, 155, 78 OB140124: Mass-distance Relations (III) Beaulieu+ [incl. Henderson] (2018) AJ, 155, 78 Udalski+ (2015) ApJ, 799, 237

Beaulieu+ [incl. Henderson] (2018) AJ, 155, 78 OB140124: Mass-distance Relations (III) Know Thy Starrrrr… Know Thy Planet! Beaulieu+ [incl. Henderson] (2018) AJ, 155, 78 Udalski+ (2015) ApJ, 799, 237

Know *Not-Thy* Starrrrr… OB140124: Mass-distance Relations (III) Know *Not-Thy* Starrrrr… Know Thy Planet! Know Thy Starrrrr… Know Thy Planet! Beaulieu+ [incl. Henderson] (2018) AJ, 155, 78 Udalski+ (2015) ApJ, 799, 237

Ryu+ [incl. Henderson] (2018) AJ, 155, 40 OB161190: Spitzer and K2C9 Ryu+ [incl. Henderson] (2018) AJ, 155, 40

Ryu+ [incl. Henderson] (2018) AJ, 155, 40 OB161190: Mass-distance Relations (I) Ryu+ [incl. Henderson] (2018) AJ, 155, 40

Ryu+ [incl. Henderson] (2018) AJ, 155, 40 OB161190: Mass-distance Relations (II) Ryu+ [incl. Henderson] (2018) AJ, 155, 40

Ryu+ [incl. Henderson] (2018) AJ, 155, 40 Henderson+ (preliminary…) OB161190: Mass-distance Relations (III) mH = 18.3  lens flux! Ryu+ [incl. Henderson] (2018) AJ, 155, 40 Henderson+ (preliminary…)

Ryu+ [incl. Henderson] (2018) AJ, 155, 40 Henderson+ (preliminary…) OB161190: Mass-distance Relations (III) + 0.5 M☉ M-dwarf @ 5 kpc (disk) Ryu+ [incl. Henderson] (2018) AJ, 155, 40 Henderson+ (preliminary…)

Ryu+ [incl. Henderson] (2018) AJ, 155, 40 Henderson+ (preliminary…) OB161190: Mass-distance Relations (III) + 0.8 M☉ K-dwarf @ 8.3 kpc (bulge) Ryu+ [incl. Henderson] (2018) AJ, 155, 40 Henderson+ (preliminary…)

Know Not-Thy Starrrrrs… OB161190: Mass-distance Relations (III) + 0.8 M☉ K-dwarf @ 8.3 kpc (bulge) Know Not-Thy Starrrrrs… Know Thy Planet! Ryu+ [incl. Henderson] (2018) AJ, 155, 40 Henderson+ (preliminary…)

Using Stellar Properties to Understand Planet Properties …but: Isochrones versus empirical mass-luminosity relations Stellar age is generally unknown Direct measure of NIR extinction toward lens Systematic uncertainty in absolute photometric calibration Blend flux contribution from ambient stars Blend flux contribution from companion(s) to lens or source How to reconcile with θE and πE methodologies?!?