Zoltan Balog

The Rise and Fall of Debris Disks: MIPS Observations of h and chi Persei and the Evolution of Mid-IR Emission from Planet Formation (2007)

Currie, Thayne, Kenyon, Scott, Balog, Zoltan, Rieke, George, Bragg, Ann, Bromley, Ben

We describe Spitzer/MIPS observations of the double cluster, h and $\chi$ Persei, covering a $\sim$ 0.6 square-degree area surrounding the cores of both clusters. The data are combined with IRAC and...

Discovery of Gas Accretion Onto Stars in 13 Myr old h and chi Persei (2007)

Currie, Thayne, Kenyon, Scott, Balog, Zoltan, Bragg, Ann, Tokarz, Susan

We report the discovery of accretion disks associated with ~ 13 Myr-old intermediate/low-mass stars in h and chi Persei. Optical spectroscopy of ~ 5000 stars in these clusters and a surrounding halo...

Terrestrial Zone Debris Disk Candidates in h and chi Persei (2007)

Currie, Thayne, Kenyon, Scott J., Rieke, George, Balog, Zoltan, Bromley, Benjamin C.

We analyze 8 sources with strong mid-infrared excesses in the 13 Myr-old double cluster h and chi Persei. New optical spectra and broadband SEDs (0.36-8 mu_m) are consistent with cluster membership....

Spitzer observations of a 24 micron shadow: Bok Globule CB190 (2007)

Stutz, Amelia M., Bieging, John H., Rieke, George H., Shirley, Yancy L., Balog, Zoltan, Gordon, Karl D., ...

We present Spitzer observations of the dark globule CB190 (L771). We observe a roughly circular 24 micron shadow with a 70 arcsec radius. The extinction profile of this shadow matches the profile...

Absolute Calibration and Characterization of the Multiband Imaging Photometer for Spitzer. II. 70 micron Imaging (2007)

Gordon, Karl D., Engelbracht, Charles W., Fadda, Dario, Stansberry, John, Wachter, Stefanie, Frayer, Dave T., ...

The absolute calibration and characterization of the Multiband Imaging Photometer for Spitzer (MIPS) 70 micron coarse- and fine-scale imaging modes are presented based on over 2.5 years of...

SPITZER/IRAC-MIPS Survey of NGC2244: Protostellar Disk Survival in the Vicinity of Hot Stars (2007)

Balog, Zoltan, Muzerolle, James, Rieke, G. H., Su, Kate Y. L., Young, Eric T.

We present the results from a survey of NGC 2244 from 3.6 to 24 micron with the Spitzer Space Telescope. The 24micron-8micron-3.6micron color composite image of the region shows that the central...

Spitzer/IRAC and JHKs Observations of h & chi Persei: Constraints on Protoplanetary Disk and Massive Cluster Evolution at ~ 10^{7} yr (2007)

Currie, Thayne, Balog, Zoltan, Kenyon, S. J., Rieke, G., Prato, L., Young, E. T., ...

We describe IRAC 3.6-8 mu_m observations and ground-based near-IR JHKs photometry from Mimir and 2MASS of the massive double cluster h & chi Persei complete to J=15.5 (M ~ 1.3 Msun. Within 25' of the...

Spectroscopic survey of the Galactic open cluster NGC 6871 I. New emission line stars (2002)

Balog, Zoltan, Kenyon, Scott J.

We analyze spectra of 44 emission line stars detected in a low resolution optical spectroscopic survey of the galactic open cluster NGC 6871. The survey of 1217 stars is complete to V = 14.9 and...