17 May The brand new uv spectra away from 2201 Oljato (taken up October
Additionally, prejudice and you can flat-job frames and additionally exposures from a FeNe testing light to possess wavelength calibration and findings many spectrophotometric standard stars and you may solar analogs was in fact gotten to allow the brand new flux calibration therefore the approximation of your continuum. The images were flux calibrated and higher limitations towards production pricing of your about three radicals within the 2201 Oljato and you can P/Wilson-Harrington was indeed determined and you can opposed. Likewise, the new spectral reflectance of your continuum as compared to a solar power analog in your neighborhood anywhere between 3240 Angstroms and you can 6160 Angstroms could be discussed both for items. The top limits on the production rate of one’s OH radical deterrnined for all about three objects would be opposed and you may discussed. Sadly we can not is an analysis of your continuum from the uv, because apparent magnitudes of your things just have already been between 18^yards and 17^yards and also the restricting magnitude to possess identification away from continuum on IUE try of your own acquisition from ten^yards.
The outcome would-be together with talked about because so you can needed future findings
The newest testing out-of 2201 Oljato and you will 1566 Icarus having Comet Wilson-Harrington, at which we understand that it’s at least an inactive comet, suggests hope for clues towards the matter whether or not 2201 Oljato and you will 1566 Icarus might possibly be extinct otherwise dormant cometary nuclei. Chamberlin A good. B.* McFadden L. An effective. Schulz R. Schleicher D. G. 2201 Oljato and you may 4015 Comet P/Wilson-Harrington: Look for CN (0-0) Ring Emission 2201 Oljato is actually a planet-crossing asteroid which may have evolved of both a portion of the asteroid strip or the tank regarding quick-period comets into its most recent, dynamically unpredictable, globe crossing orbit. You will find one another observational proof of this new asteroid’s actual services (McFadden ainsi que al. Milani et al.
Using this studies, i produced measurements of these stuff to look for CN emission, the very effortlessly seen erratic kinds inside comets. Ground-based findings were made for the Oct 1992 Dating-Seite für iOS-Leute playing with Lowell Observatory’s step one. Brand new CCD spectrograph try designed provide a great wavelength directory of as much as 3240A in order to 6160A.
1.ten Au respectively. A total of 16 exposures (twenty minutes for each and every) was in fact pulled regarding 2201 Oljato. 4015 Comet P/Wilson- Harrington are noticed to the 04, 06, 07, and 08 Oct 1992 article perihelion having r-dot=
Asteroid 4015 1979 Va are found to be an equivalent object once the comet P/Wilson-Harrington 1949 III by the Bowell (IAUC 5585)
All in all, 11 exposures (20 minutes or so each) was basically taken regarding 4015 Comet P/Wilson-Harrington. Extinction, flux calibration, and solar analog celebs have been observed on each evening. The fresh line thickness out of CN try calculated about observed flux at CN (0-0) ring considering the newest fluorescence performance on geocentric range, heliocentric length, and you can heliocentric acceleration each and every object. In the end, the latest line densities try transformed into CN manufacturing costs towards the basis of your own Haser (1957) design. The results would-be in contrast to production costs present in comets. Playing with flux calibrated spectra of 2201 Oljato and 4015 Comet P/Wilson-Harrington, we shall split by the a solar power analog spectrum in order to make cousin reflectance spectraparison to in earlier times obtained reflectance spectra might possibly be generated. REFERENCES: McFadden, L. A good., Cochran, A beneficial.
L., Barker, Age. S., Cruikshank, D. P., Hartman, W. K. 1993. J. Geophys. Res. E2, pp. Milani, A good. Meters. 1989. Icarus, -269. Meech K. J. Weaver H. Good.* Zellner B. Noll K. S. Bulk Losses Restrictions from 5145 Pholus Both surface-established and you will Hubble Space Telescope (HST) pictures of the Chiron-such as asteroid 5145 Pholus had been acquired as a way to lookup to own cometary activity just after dark perihelion time in 1991 September. Ground-dependent findings were made into School away from Hawaii 2. HST studies were gotten towards 19era (F555W, F785LP filter systems; 2400 sec complete visibility big date from the F785LP filter and you may 900 sec complete by way of F555W). None a floor-oriented neither HST photographs inform you signs and symptoms of coma. We are going to discuss the repairs of your own HST photographs with the Lucy-Richardson techniques and you will speak about how the research had been compared to the stellar users for both the surface-built and you may HST photographs.
No Comments