Low frequency Carbon Recombination Lines
نویسندگان
چکیده
منابع مشابه
Low Frequency Carbon Radio Recombination Lines I: Calculations of Departure Coefficients
In the first paper of this series, we study the level population problem of recombining carbon ions. We focus our study on high quantum numbers anticipating observations of Carbon Radio Recombination Lines to be carried out by the LOw Frequency ARray (LOFAR). We solve the level population equation including angular momentum levels with updated collision rates up to high principal quantum number...
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We have carried out VLA D-array observations of the C91α carbon recombination line as well as Effelsberg 100-m observations of the C65α line in a 5 ′ square region centered between the Bar and the Trapezium stars in the Orion Nebula with spatial resolutions of 10 ′′ and 40 ′′ , respectively. The results show the ionized carbon in the PDR associated with the Orion Bar to be in a thin, clumpy lay...
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Activated carbon can adsorb and desorb gas molecules onto and off its surface. Research has examined whether this sorption affects low frequency sound waves, with pressures typical of audible sound, interacting with granular activated carbon. Impedance tube measurements were undertaken examining the resonant frequencies of Helmholtz resonators with different backing materials. It was found that...
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The relationship between magnetic fields and the health of people is increasingly being investigated. International organizations have proposed bylaws that put limits on the value of the generated magnetic field. In this work, we measure the magnetic field created by electrical appliances and high voltage lines and we analyze the degree of compliance with recent applicable European regulation. ...
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We present results of a search for carbon recombination lines in the Galaxy at 34.5 MHz (C575α) made using the dipole array at Gauribidanur near Bangalore. Observations made towards 32 directions, led to detections of lines in absorption at nine positions. Followup observations at 328 MHz (C272α) using the Ooty Radio Telescope detected these lines in emission. A VLA D-array observation of one o...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 2002
ISSN: 0074-1809
DOI: 10.1017/s0074180900169232