HIGH-CONTRAST IMAGING OF YOUNG PLANETS WITH JWST
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1 ExSoCal Conference September 18-19th 2017, Pasadena HIGH-CONTRAST IMAGING OF YOUNG PLANETS WITH JWST Marie Ygouf
2 HR 8799 planetary system Jason Wang / Christian Marois Keck data
3
4 Giants planets and brown dwarfs Large separation
5 High contrast imaging science goals Characterization of known exoplanetary systems What is the occurence of wide separated young exoplanets? What do they look like? How do they form? What is their evolutionary path? What are their interactions with the circumstellar disk? How can we put our solar system into context?
6 High contrast imaging science goals Characterization of known exoplanetary systems What is the occurence of wide separated young exoplanets? What do they look like? How do they form? What is their evolutionary path? What are their interactions with the circumstellar disk? How can we put our solar system into context? Search for new worlds How can we detect more of them?
7 JWST Coronagraphs NIRCam: Near-Infrared Camera 7 Source: JWST Observatory and Instrumentation Documentation
8 JWST Coronagraphs MIRI: Mid-Infrared Camera 8 8 Source: JWST Observatory and Instrumentation Documentation
9 Giants planets and brown dwarfs Large separation
10 Giants planets and brown dwarfs IFU Large separation
11 Giants planets and brown dwarfs? Saturn mass Large separation
12 Coronagraphic Imaging of Young Planets NIRCam GTO Program (PI: Chas Beichman) Characterization of known exoplanetary systems Search for new worlds
13 Coronagraphic Imaging of Young Planets NIRCam GTO Program (PI: Chas Beichman) Characterization of known exoplanetary systems What is the occurence of wide separated young exoplanets? What do they look like? How do they form? What is their evolutionary path? What are their interactions with the circumstellar disk? How can we put our solar system into context? Search for new worlds
14 Coronagraphic Imaging of Young Planets NIRCam GTO Program (PI: Chas Beichman) Characterization of known exoplanetary systems What is the occurence of wide separated young exoplanets? What do they look like? How do they form? What is their evolutionary path? What are their interactions with the circumstellar disk? How can we put our solar system into context? Search for new worlds How can we detect more of them?
15 Characterization of known exoplanetary systems Determine atmospheric composition and physical properties to understand formation mechanism of exterior planets
16 Characterization of known exoplanetary systems Final Target List (as of 15 June 2017) HD b HR 8799 b, c & d HR 8799 e NIRCam & MIRI GTOs Telescope Team GTO 51 Eri b Marois et al Rameau et al 2013 Macintosh et al Determine atmospheric composition and physical properties to understand formation mechanism of exterior planets
17 Characterization of known exoplanetary systems Final Target List (as of 15 June 2017) HD b HR 8799 b, c & d HR 8799 e NIRCam & MIRI GTOs Telescope Team GTO 51 Eri b Marois et al Rameau et al 2013 Macintosh et al Determine atmospheric composition and physical properties to understand formation mechanism of exterior planets Observing Strategy: Long Wavelength Mask, 6 filters, 1 roll, 1 reference star for speckle calibration
18 Search for new worlds Extend to lower mass limits compared to ground-based observations
19 Search for new worlds Extend to lower mass limits compared to ground-based observations Final Target List (as of 15 June 2017) HD HR Eri Marois et al Rameau et al 2013 Vega Fomalhaut Moonshots Marois et al Rameau et al 2013 Eps Eri Kalas et al Jensen et al Jensen et al Macintosh et al. 2015
20 Search for new worlds Extend to lower mass limits compared to ground-based observations Observing Strategy: Round Mask 430, 2 filters, 2 rolls, 1 reference star PSF for speckle calibration, some targets both full and narrow fields Final Target List (as of 15 June 2017) HD HR Eri Marois et al Rameau et al 2013 Vega Fomalhaut Moonshots Marois et al F356W F444W Rameau et al 2013 Eps Eri Kalas et al Jensen et al Jensen et al Macintosh et al. 2015
21 Search for new worlds Extend to lower mass limits compared to ground-based observations Observing Strategy: Round Mask 430, 2 filters, 2 rolls, 1 reference star PSF for speckle calibration, some targets both full and narrow fields F356W F444W Adapted from Beichuan et al. 2010: Extension of COND03 models (Baraffe et al. 2003) for planetary masses down to 0.1 MJup
22 Search for new worlds Exposure time computations for searches up to Saturn Masses at 4 with a 10 nm wavefront drift using the extension of COND03 models (Baraffe et al. 2003) for planetary masses down to 0.1 MJup (Beichman et al. 2010) Target HD HR Eri Vega Fomalhaut Eps Eri Mass Jupiter Saturn Saturn Saturn Saturn Saturn Exposure Time ~2000 ~3200 ~2000 ~3800 ~3800 ~3800 SNR >
23 Take Home Messages Direct imaging is essential to further understand exoplanetology
24 Take Home Messages Direct imaging is essential to further understand exoplanetology Direct imaging is hard, not a lot of detected planets
25 Take Home Messages Direct imaging is essential to further understand exoplanetology Direct imaging is hard, not a lot of detected planets The "Coronagraphic Imaging of Young Planets" program has been designed to do what NIRCam will do best: characterization of known exoplanets and search for news worlds at lower mass limits down to at least Saturn masses First results in about 20 months, stay tuned
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