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IRTF 2011-30126 김도형
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Contents About IRTF Instruments on the IRTF -Introduction of instruments -Sciences from instrument What can we do with IRTF?
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Contents About IRTF Instruments on the IRTF -Introduction of instruments -Sciences from instrument What can we do with IRTF?
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About IRTF NASA InfraRed Telescope Facility 3.0 meter telescope, optimized for infrared observations 50% of the IRTF observing time is reserved for studies of solar system objects Located at the summit of Mauna Kea, Hawai`i
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Subaru Keck IRTF
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Atmosphere absorption a
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About IRTF NASA InfraRed Telescope Facility 3.0 meter telescope, optimized for infrared observations 50% of the IRTF observing time is reserved for studies of solar system objects Located at the summit of Mauna Kea, Hawai`i
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About IRTF Subaru 8.2m Keck 10m Gemini 8.1m UKIRT 4m CFHT 3.6m IRTF 3m
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Contents About IRTF Instruments on the IRTF -Introduction of instruments -Sciences from instrument What can we do with IRTF?
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Instruments on the IRTF SpeX: 0.8-5.5 Micron Medium-Resolution Spectrograph and Imager CSHELL: 1 - 5.5 μm high resolution single-order echelle spectrograph MIRSI: A Mid-Infrared Spectrometer and Imager (2-28 μm) ---------------------------------------------------------------------------- MORIS: high-speed, visible wavelength imager & spectrograph
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NIR Spectroscopy Instruments SpeX: 0.8-5.5 μm CSHELL: 1 - 5.5 MIRSI: 2-28 μm Subaru: COMICS- Cooled Mid-Infrared Camera and Spectrograph - provides imaging and spectroscopy from 8-25 microns Subaru: IRCS - Infrared Camera and Spectrograph - provides imaging from 0.9-5.5 microns, and low-resolution and echelle spectroscopy over the same range Gemini: NIRI - 1-5µm imager with grism spectroscopy Gemini: MICHELLE - 10-20µm imager/ spectrometer; imaging polarimetry Keck: NIRC - instrument designed to produce both infrared images and low resolution spectra from 1 to 5 µm Keck: NIRSPEC - 0.95-5.5 μm CFHT: ESPaDOnS - 3700Å to 10500Å UKIRT: X
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MIRSI The two grisms cover 8 - 14 μm at a resolution of up to 200 (using a 0.6'' slit), and 17 - 26 μm range at a resolution of up to 100 (1.2'' slit) Filters for imaging consist of narrowband filters for both the 10 and 20 μm windows spatial resolution (0.8'' @ 10 microns at IRTF )
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MIRSI’s Scientific Topic Star Formation Planetary Nebulae Starburst Galaxies Extra Solar System Solar System Body
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Studies with MIRSI Test model of star formation process -The role of small dust grains and large molecules, such as PAH, and place constraints on the extent of the dust envelope -Mapping of entire molecular cloud complexes by MIRSI's wide field of view -> -Shock dynamics in circumstellar shell of embedded objects with high amounts of obscuration Identifying mid-IR properties of planet -To probe Jupiter's atmospheric properties using CH4 (7.8 microns), H2 (13.0 microns), and NH3 (10.74 and 8.57 microns, gas and ice).
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Hoffmann et al. 1993 20.6 microns image of the Orion Nebula, taken at IRTF Suitable equipment to study galactic star-forming regions such as these using both imaging and spectroscopy in the 10 and 20 micron atmospheric windows FOV = 85 x 64 arcsec MIRSI’s large field of view
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Studies with MIRSI Test model of star formation process -The role of small dust grains and large molecules, such as PAH, and place constraints on the extent of the dust envelope -Mapping of entire molecular cloud complexes by MIRSI's wide field of view -> -Shock dynamics in circumstellar shell of embedded objects with high amounts of obscuration Identifying mid-IR properties of planet -To probe Jupiter's atmospheric properties using CH4 (7.8 microns), H2 (13.0 microns), and NH3 (10.74 and 8.57 microns, gas and ice).
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SpeX medium-resolution 0.8-5.4 μm spectrograph R~1000-2000 across 0.8-2.4 μm, 1.9-4.2 μm, 2.1-5.0 μm and 2.3-5.5 μm (using cross disperser) prism mode is a provided for 0.8-2.5 micron spectroscopy at R~100
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SpeX Cross disperser Modes of SpeX
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SXD Sample Red quasar z~0.7
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Prism Sample High z quasar (z=6.04±0.01) Ly β Ly α SiIV CIV MgII
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Prism Sample High z quasar (z=6.04±0.01) Ly β Ly α SiIV CIV MgII h0224 T~1500K Brown dwarf
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Observing Schedule
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Scientific Topic Dwarfs Solar system AGNs Molecular Cloud Supernovae
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Dwarf Study with SpeX Discovery of ultra-cool brown dwarf T_eff=600K [Fe/H]=0 Mainzer et al. 2011
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Resolved Spectroscopy of M Dwarf& L Dwarf Binaries Dhital et al. 2011
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Resolved Spectroscopy of M Dwarf& L Dwarf Binaries Resolved spectroscopy of M dwarf& L dwarf by using IRTF’s various slit width (0.3, 0.5, 0.8, 1.6 and 3.0”)
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Comet 17P/ Holmes Yang et al. 2009 ??
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Hot Dust Property of AGNs Hot dust temperature is ~1500K The power-law slope of AGNs was changed by the effect of hot dust BB radiation Glikman et al. 2006
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Stellar& Dust Populations of Seyfert Galaxy A first approach of stellar& dust contamination study in NIR Riffel et al. 2011
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The Existence of Red Shelf The FWHMs of Hβ are broader than those of Pβ Landt et al. 2008
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The Paschen line BH mass estimator The BH masses estimated by Paschen line have a tight correlation with those of existed method Kim et al. 2010
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H2O Ice in Dense Cloud Chiar et al. 2011
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The NIR catalog of SN Marion et al. 2009
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CSHELL Cryogenic Near-IR Facility Spectrograph 1 - 5.5 μm high resolution single- order echelle spectrograph R430002150013300108005040 Slit width (arcsec)0.51.01.52.04.0
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Hot Wind from T Tauri Star Fast and hot accelerating outflow from T tauri star Dupree et al. 2005
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Molecular hydrogen gas of T tauri stars Weintraub et al. 2000
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Studies of Solar System Evidence for a dominant native source of carbon monoxide in Comet C/1996 B2 (Hyakutake) – DiSanti et al. 2003 Methane in Oort cloud comets – Gibb et al. 2003 High-resolution spectroscopy of Venus: Detection of OCS, upper limit to H 2 S, and latitudinal variations of CO and HF in the upper cloud layer – Krasnopolsky 2008 Detection of Formaldehyde Emission in Comet C/2002 T7 (LINEAR) at Infrared Wavelengths: Line-by-Line Validation of Modeled Fluorescent Intensities – DiSanti et al. 2006 …
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Contents About IRTF Instruments on the IRTF -Introduction of instruments -Sciences from instrument What can we do with IRTF?
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AGN-Starburst Connection Composite spectrum of PG QSO with the Subaru IRCS Kawakatu & Wada (2008) predicted that the nuclear-starburst to AGN luminosity ratio will increase with increasing AGN luminosity, whereas Ballantyne (2008) has argued the contrary Imanishi et al. 2011
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Discovery of dwarf& high z (~6) QSO Ly β Ly α SiIV CIV MgII Mainzer et al. 2011
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The Competition Rate of IRTF 2010A: 1.7 for solar system and 2.8 for non-solar system proposals 2010B: 1.7 for solar system and 2.1 for non-solar system proposals 8m Telescope: over than 5?? Space Telescope: over than 10??
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The Competition Rate of IRTF 2010A: 1.7 for solar system and 2.8 for non-solar system proposals 2010B: 1.7 for solar system and 2.1 for non-solar system proposals 8m Telescope: over than 5?? Space Telescope: over than 10?? Mainzer et al. 2011
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How to Submit? A season: February 1 – July 31 (10/1) B season: August 1 - January 31 (4/1) To prepare application by LaTex or Word
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