Aditya Dayal

Mid-IR Observations of Mira Circumstellar Environment (2001)

Marengo, Massimo, Karovska, Margarita, Fazio, Giovanni G., Hora, Joseph L., Hoffmann, William F., Dayal, Aditya, ...

This paper presents results from high-angular resolution mid-IR imaging of the Mira AB circumbinary environment using the MIRAC3 camera at the NASA Infrared Telescope Facility (IRTF). We resolved the...

Spatial Distributions of Multiple Dust Components in the PPN/PN Dust Shells (2000)

Ueta, Toshiya, Speck, Angela K., Meixner, Margaret, Dayal, Aditya, Hora, Joseph L., Fazio, Giovanni G., ...

We investigate spatial distributions of specific dust components in the circumstellar shells of a proto-planetary nebula candidate, HD 179821, and a planetary nebula, BD$+30^{\circ}$3639, by means of...

Discovery of an Extended Dust Emission around IRAS 18576+0341 (AFGL 2298) at 10.3 and 18.0 microns: a New Luminous Blue Variable Candidate? (2000)

Ueta, Toshiya, Meixner, Margaret, Dayal, Aditya, Deutsch, Lynne K., Fazio, Giovanni, Hora, Joseph L., ...

We report detection of an extended mid-infrared emission from \iras 18576+0341 (AFGL 2298). The object shows a dusty circumstellar shell that has diameter of $\age 7\arcsec$ at 10.3 and 18.0 $\um$....

Mid-infrared imaging of the massive young star AFGL 2591: Probing the circumstellar environment of an outflow source (2000)

Marengo, Massimo, Jayawardhana, Ray, Fazio, Giovanni G., Hoffmann, William F., Hora, Joseph L., Dayal, Aditya, ...

Most, if not all, stars are now believed to produce energetic outflows during their formation. Yet, almost 20 years after the discovery of bipolar outflows from young stars, the origins of this...

Revealing the Photodissociation Region: Hubble Space Telescope/NICMOS Imaging of NGC 7027 (2000)

Latter, William B., Dayal, Aditya, Bieging, John H., Meakin, Casey, Hora, Joseph L., Kelly, Douglas M., ...

We report results from a Hubble Space Telescope (HST) and Near-Infrared Camera and Multiobject Spectrometer (NICMOS) program to study the distribution of hot neutral (molecular hydrogen) and ionized...

HST/NICMOS Imaging of the Planetary Nebula Hubble 12 (2000)

Hora, Joseph L., Latter, William B., Dayal, Aditya, Bieging, John, Kelly, Douglas M., Tielens, A. G. G. M., ...

Images of Hubble 12 were obtained with the HST/NICMOS instrument in the F110W, F164N, and F166N filters of NIC1, and the F160W, F187N, F190N, F212N, F215N filters of NIC2. The images show the...

A Mid-Infrared Imaging Survey of Proto-Planetary Nebula Candidates (1998)

Meixner, Margaret, Ueta, Toshiya, Dayal, Aditya, Hora, Joseph L., Fazio, Giovanni, Hrivnak, Bruce J., ...

We present the data from a mid-infrared imaging survey of 66 proto-planetary nebula candidates using two mid-IR cameras (MIRAC2 and Berkcam) at the NASA Infrared Telescope Facility and the United...

A thermal-infrared and millimeter-wave study of evolved stars, and proto-planetary and planetary nebulae /--by Aditya Dayal. (1997)

Dayal, Aditya.

Thesis (Ph. D.)--University of Arizona, 1997.