1,724,783 research outputs found
The Radio Variability of the Gravitational Lens PMN J1838-3427
No full textWe present the results of a radio variability study of the gravitational lens PMN J1838-3427. Our motivation was to determine the Hubble constant by measuring the time delay between variations of the two quasar images. We monitored the system for 4 months (approximately 5 times longer than the expected delay) using the Australia Telescope Compact Array at 9 GHz. Although both images were variable on a timescale of a few days, no correlated intrinsic variability could be identified, and therefore no time delay could be measured. Notably, the fractional variation of the fainter image (8%) was greater than that of the brighter image (4%), whereas lensed images of a point source would have the same fractional variation. This effect can be explained, at least in part, as the refractive scintillation of both images due to the turbulent interstellar medium of the Galaxy
The Radio Variability of the Gravitational Lens PMN J1838-3427
No full textWe present the results of a radio variability study of the gravitational lens PMN J1838-3427. Our motivation was to determine the Hubble constant by measuring the time delay between variations of the two quasar images. We monitored the system for 4 months (approximately 5 times longer than the expected delay) using the Australia Telescope Compact Array at 9 GHz. Although both images were variable on a timescale of a few days, no correlated intrinsic variability could be identified, and therefore no time delay could be measured. Notably, the fractional variation of the fainter image (8%) was greater than that of the brighter image (4%), whereas lensed images of a point source would have the same fractional variation. This effect can be explained, at least in part, as the refractive scintillation of both images due to the turbulent interstellar medium of the Galaxy
Santa Fe (ATSF) 3427
No full textA photograph print showing Santa Fe 3427, 4-6-2, taking n water, pulling passenger train, Topeka, KS
Wood, Mary Anne (SC 3427)
Full text linkFinding aid only for Manuscripts Small Collection 3427. Letters to retired WKU faculty member Frances Richards from former student Mary Anne Wood. She reports on her health, earning a master’s degree in 1970, and her work for Kentucky Educational Television
Block Card 3427 Lagrange Street
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: commercial building | 3427 Lagrange Street (Toledo, Ohio) | service station | Sunoco | North Toledo (Toledo, Ohio) | Lagrange Area (Toledo, Ohio) | Doppkes St. Adalbert Additio
COLLISIONAL DEACTIVATION OF THE 3427 {\AA} VIBRATIOWAL BAND OF THE 3460 - 3015 {\AA} BAND SYSTEM OF BY VARIOUS INERT GASES
No full text J. B. Tellinghuisen, Ph.D. thesis, p. 152. University of California, Berkeley, California, 1969. ""Author Institution: Sandia LaboratoriesThe 3460 - 3015 {\AA} band system of has been tentatively to the transition of . In the course of investigating this system as a candidate for an e-beam initiated laser the collision deactivation rates of the 3427 {\AA} vibrational band by argon and krypton were measured. In addition, the collisional deactivation rate of the 3427 {\AA} vibrational band by ground state was measured and an estimate of the Lifetime of the upper state of the 3427 {\AA} transition was obtained
Block Card 3427 Angela Place
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: dwelling | 3427 Angela Place (Toledo, Ohio) | Ranch Style (Toledo, Ohio) | North Toledo (Toledo, Ohio) | Stickney-Buckeye Area (Toledo, Ohio) | John L. Gornys Stickney Avenue Addition (Toledo, Ohio
Block Card 3427 Forest Grove Drive
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: dwelling | 3427 Forest Grove Drive (Toledo, Ohio) | Ranch houses | Fullers Forest Grove | Franklin Park Area (Toledo, Ohio) | West Toledo (Toledo, Ohio
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