Dust from Collisions: Mid-infrared Absorbance Spectroscopy of Martian

Dust from collisions: mid-infrared absorbance spectroscopy of Martian meteorites

The Open University ’ s repository of research publications and other research outputs Dust from collisions : mid - infrared absorbance spec - troscopy of Martian meteorites

A 10 - Myr - Old Transition Disk

We present the mid-infrared spectrum, obtained with the Spitzer Infrared Spectrograph (IRS), of HD 98800, a quadruple star system located in the 10-Myr-old TW Hydrae association. It has a known mid-infrared excess that arises from a circumbinary disk around the B components of the system. The IRS spectrum confirms that the disk around HD 98800 B displays no excess emission below about 5.5 μm, i...

Thermal Structure of the Martian Atmosphere during the Dissipation of the Dust Storm of 1971

The secular variation of the thermal structure of the Martian atmosphere during the dissipation phase of the 1971 dust storm is examined, using temperatures obtained by the infrared spectroscopy investigation on Mariner 9. For the latitude range -20 ° to -30 °, the mean temperature at the 2mbar level is found to decrease from approximately 220 K in mid-December 1971 to about 190 K by June 1972 ...

Myr - Old Transition Disk

We present the mid-infrared spectrum, obtained with the Spitzer Infrared Spectrograph (IRS), of HD 98800, a quadruple star system located in the 10-Myr-old TW Hydrae association. It has a known mid-infrared excess that arises from a circumbinary disk around the B components of the system. The IRS spectrum confirms that the disk around HD 98800 B displays no excess emission below about 5.5 μm, i...