Second Unit of Plane Angle

Known as: '', Arcsecond, Second 
A unit of angular measure equal to 1/60 arcminute or to 1/360 degree. Second is also called the arcsecond to distinguish it from the second of time… (More)
National Institutes of Health

Topic mentions per year

Topic mentions per year

1986-2017
0204019862017

Papers overview

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2012
2012
SMART-X is a mission concept for a 2.3 m2 e ective area, 0.5 ′′ angular resolution X-ray telescope, with 5 ′ FOV, 1 ′′ pixel size… (More)
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2011
2011
The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters… (More)
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2011
2011
Conventional centroid estimation fits a template point spread function (PSF) to image data. Because the PSF is typically not… (More)
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2010
2010
High-resolution spectroscopy at energies below 1 keV covers the lines of C, N, O, Ne and Fe ions, and is central to studies of… (More)
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Highly Cited
2009
Highly Cited
2009
a million-second (equivalent to about 12 days) exposure of a small (16 × 16 arcminute square) region of sky near the Galactic… (More)
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2006
2006
We present and discuss new result from mm-VLBI observations of M 87 and Sgr A*. The imaging of these sources with a spatial… (More)
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2004
2004
We have used the Palomar Testbed Interferometer to perform very high precision differential astrometry on the 0.25 arcsecond… (More)
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2003
2003
With 10 years of high-resolution imaging data now available on the stellar cluster in the Galactic Center, we present proper… (More)
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1998
1998
We have used the Very Long Baseline Array at 15 GHz to image the structure of 132 strong compact active galactic nuclei (AGNs… (More)
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1998
1998
In observations with the Australia Telescope Compact Array we have resolved the radio counterpart of the unusual X-ray binary Cir… (More)
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