منابع مشابه
SCUBA Observations of the Elliptical Galaxy NGC 4374
We present SCUBA imaging and photometry of the elliptical galaxy NGC 4374. The imaging observations are used to examine the spatial distribution of thermal emission from dust and the radio to infrared continuum spectrum. In the SCUBA 850μm image, the galaxy is found to be a point source, constraining the emission to less than 15 (1.5 kpc for a distance of 20.74 Mpc). The simplest interpretation...
متن کاملX - ray emission from NGC 4321 ( M 100 ) : detection of supernova 1979 C
In a 42.8 ks ROSAT HRI X-ray observation of the spiral galaxy NGC 4321 (M 100) X-ray emission from the supernova 1979C is discovered, sixteen years after its outburst, with an (0.1–2.4 keV) X-ray luminosity of Lx = 1.0 × 1039 erg s−1. No X-ray emission is observed from the three other historical supernovae in NGC 4321 (SN 1901B, SN 1914A and SN 1959E). In addition to SN 1979C, seven X-ray point...
متن کاملar X iv : a st ro - p h / 97 10 26 4 v 1 2 3 O ct 1 99 7 Kinematics of the Nuclear Ionized Gas in the Radio Galaxy M 84 ( NGC 4374
We present optical long-slit spectroscopy of the nucleus of the nearby radio galaxy M84 (NGC 4374 = 3C 272.1) obtained with the Space Telescope Imaging Spectrograph (STIS) aboard the Hubble Space Telescope (HST). Our spectra reveal that the nuclear gas disk seen in WFPC2 imaging by Bower et al. (1997, ApJ, 483, L33) is rotating rapidly. The velocity curve has an S-shape with a peak amplitude of...
متن کاملDev129635 4374..4384
Experimental manipulation of protein abundance in living cells or organisms is an essential strategy for investigation of biological regulatory mechanisms. Whereas powerful techniques for protein expression have been developed in Caenorhabditis elegans, existing tools for conditional disruption of protein function are far more limited. To address this, we have adapted the auxin-inducible degrad...
متن کاملThe Subluminous Type Ia Supernova 1998de in Ngc 252
We present spectroscopic and extensive photometric observations of supernova (SN) 1998de in the S0 galaxy NGC 252, discovered during the course of the Lick Observatory Supernova Search. These data, which span a time period of 8 days before to 76 days after B-band maximum, unambiguously establish SN 1998de as a peculiar and subluminous type Ia supernova (SN Ia) with strong similarities to SN 199...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1957
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.19572840308