Boncho P. Bonev

Comet C/2004 Q2 (Machholz): parent volatiles, a search for deuterated methane, and constraint on the CH_4 spin temperature (2009)

Bonev, Boncho P., Mumma, Michael J., Gibb, Erika L., DiSanti, Michael A., Villanueva, Geronimo L., Magee-Sauer, Karen, ...

High-dispersion (λ/δλ ≈ 25,000) infrared spectra of Comet C/2004 Q2 (Machholz) were acquired on 2004 November 28-29, and 2005 January 19 (UT dates) with the Near InfraRed echelle SPECtrograph...

A Multi-Wavelength Study of Parent Volatile Abundances in Comet C/2006 M4 (SWAN) (2009)

Disanti, Michael A., Villanueva, Geronimo L., Milam, Stefanie N., Zack, Lindsay N., Bonev, Boncho P., Mumma, Michael J., ...

Volatile organic emissions were detected post-perihelion in the long period comet C/2006 M4 (SWAN) in October and November 2006. Our study combines target-of-opportunity observations using the...

Comet C/2004 Q2 (MACHHOLZ): Parent Volatiles, a Search for Deuterated Methane, and Constraint on the CH4 Spin Temperature (2009)

Bonev, Boncho P., Mumma, Michael J., Gibb, Erika L., Disanti, Michael A., Villanueva, Geronimo L., Magee-Sauer, Karen, ...

High-dispersion (l/dl ~ 25,000) infrared spectra of Comet C/2004 Q2 (Machholz) were acquired on Nov. 28-29, 2004, and Jan. 19, 2005 (UT dates) with NIRSPEC at the Keck-2 telescope on Mauna Kea. We...

Discovery of OH in circumstellar disks around young intermediate-mass stars (2008)

Mandell, Avi M., Mumma, Michael J., Blake, Geoffrey A., Bonev, Boncho P., Villanueva, Geronimo L., Salyk, Colette

We detect emission from multiple low-excitation rovibrational transitions of OH from the two Herbig Ae stars AB Aurigae and MWC 758 in the 3.0-3.7 μm wavelength range (L band), using the NIRSPEC...

Discovery of OH in Circumstellar Disks Around Young Intermediate-Mass Stars (2008)

Mandell, Avi M., Mumma, Michael J., Blake, Goeffrey A., Bonev, Boncho P., Villanueva, Geronimo L., Salyk, Colette

We detect emission from multiple low-excitation ro-vibrational transitions of OH from the two Herbig Ae stars AB Aurigae and MWC 758 in the 3.0 - 3.7 micron wavelength range (L-band), using the...

IRCS/Subaru Observations of Water in the Inner Coma of Comet 73P-B/Schwassmann-Wachmann 3: Spatially Resolved Rotational Temperatures and Ortho-Para Ratios (2008)

Bonev, Boncho P ., Mumma, Michael J., Kawakita, Hideyo, Kobayashi, Hitomi, Villanueva, Geronimo L.

Comet 73P-B/Schwassmann-Wachmann 3 was observed with IRCS/Subaru at geocentric distance of 0.074 AU on UT 10 May 2006. Multiple H2O emission lines were detected in non-resonant fluorescence near 2.9...

A Search for Variation in the H_2O Ortho-Para Ratio and Rotational Temperature in the Inner Coma of Comet C/2004 Q2 (Machholz) (2007)

Bonev, Boncho P., Mumma, Michael J., Villanueva , Geronimo L., Disanti, Michael A., Ellis, Richard S., Magee-Sauer, Karen, ...

We present spatially resolved measurements of the rotational temperature and ortho-para ratio for H_2O in the inner coma of the Oort Cloud comet C/2004 Q2 (Machholz). Our results are based on direct...

Towards a Chemical Taxonomy of Comets: Infrared Spectroscopic Methods for Quantitative Measurements of Cometary Water (With an Independent Chapter on Mars Polar Science) (2005)

Bonev, Boncho P.

While comets are often grouped according to their orbital properties, it is increasingly clear that individual groupings likely contain objects formed in diverse regions of the proto-planetary disk....

Towards a Chemical Taxonomy of Comets: Infrared Spectroscopic Methods for Quantitative Measurements of Cometary Water (With an Independent Chapter on Mars Polar Science)

Bonev, Boncho P.

While comets are often grouped according to their orbital properties, it is increasingly clear that individual groupings likely contain objects formed in diverse regions of the proto-planetary disk....