Results 41 to 50 of about 18,261 (272)

CO Observations of M51 [PDF]

open access: yesSymposium - International Astronomical Union, 1983
We present observations, which are part of an ongoing investigation, of the CO (J=1–0) emission in the spiral galaxy M51. The spectra were obtained in a beamswitched on-on mode with the Onsala 20 m antenna (beam size ~33″), equipped with a cooled mixer and a 512 ×1 MHz multichannel receiver, and are shown in Figure 1.
G. Rydbeck   +4 more
openaire   +1 more source

Chandra Probes the X-Ray Variability of M51 ULX-7: Evidence of Propeller Transition and X-Ray Dips on Orbital Periods [PDF]

open access: yesAstrophysical Journal, 2021
We report on the temporal properties of the ultraluminous X-ray (ULX) pulsar M51 ULX-7 inferred from the analysis of the 2018–2020 Swift/X-ray Telescope monitoring data and archival Chandra data obtained over a period of 33 days in 2012.
G. Vasilopoulos   +6 more
semanticscholar   +1 more source

X-Ray Spectroscopic Evidence of Charge Exchange Emission in the Disk of M51 [PDF]

open access: yesAstrophysical Journal, 2022
In the disks of spiral galaxies, diffuse soft X-ray emission is known to be strongly correlated with star-forming regions. However, this emission is not simply from a thermal-equilibrium plasma and its origin remains greatly unclear.
Shuinai 水乃 Zhang 张   +5 more
semanticscholar   +1 more source

Industry 4.0 and Current Competencies

open access: yesNaše Gospodarstvo, 2020
There is a growing gap between higher education systems and the needs and demands of the labor market. Many of today’s students will work at jobs that just have emerged or do not even exist yet. The “newcomers” will need both digital and social-emotional
Beke Eva   +2 more
doaj   +1 more source

Mixture Modeling of M51 [PDF]

open access: yesInternational Astronomical Union Colloquium, 1995
AbstractOne of the major problems with 3D spectroscopy is the adequate and meaningful display and analysis of large image cubes. We use linear mixture modeling to analyze multispectral CCD images of M51 in the visible and near-IR. We find that M51 can be modeled within the noise limits of the data as a linear combination of six components taken three ...
Paul E. Johnson   +4 more
openaire   +1 more source

An Exceptional Dimming Event for a Massive, Cool Supergiant in M51 [PDF]

open access: yesAstrophysical Journal, 2021
We present the discovery of an exceptional dimming event in a cool supergiant star in the Local Volume spiral M51. The star, dubbed M51-DS1, was found as part of a Hubble Space Telescope (HST) search for failed supernovae (SNe).
J. Jencson   +8 more
semanticscholar   +1 more source

Attracting and recruiting quality talent: firm perspectives [PDF]

open access: yesRajagiri Management Journal, 2020
Purpose – Understanding matching patterns and determinants of attracting quality talents is an under-researched area, especially from a firm perspective.
Oluyemi Theophilus Adeosun   +1 more
doaj   +1 more source

A Lack of Resolved Near-Infrared Polarization Across the Face of M51 [PDF]

open access: yes, 2012
The galaxy M51 was observed using the Mimir instrument on the Perkins telescope to constrain the resolved H-band (1.6 $\mu$m) polarization across the galaxy.
Clemens, Dan P., Pavel, Michael D.
core   +2 more sources

Optical Identification and Spectroscopy of Supernova Remnants in the Galaxy M51 [PDF]

open access: yesAstrophysical Journal, 2021
Using a combination of ground-based and Hubble Space Telescope imaging, we have constructed a catalog of 179 supernova remnants (SNRs) and SNR candidates in the nearby spiral galaxy M51.
P. Winkler   +4 more
semanticscholar   +1 more source

The Whirlpool Galaxy (M 51) and Companion Galaxy [PDF]

open access: yes, 2005
This Hubble Space Telescope image shows the stellar fireworks seen in the core of the Whirlpool Galaxy, also known as M51. The back of this image describes the history of how astronomers have viewed this galaxy over the last 150 years.

core   +1 more source

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