Št. zadetkov: 76
Izvirni znanstveni članek
Oznake:
galaksije;rdeči premik;nastanek zvezd;nastanek galaksij;galaxy evolution;high-redshift galaxies;star formation;
Identifying Lyman continuum (LyC) leakers at intermediate redshifts is crucial for understanding the properties of cosmic reionizers because the opacity of the intergalactic medium (IGM) prevents the direct detection of LyC emission from sources during the Epoch of Reionization (EoR). In this study, ...
Leto:
2025
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Video in druga učna gradiva
Oznake:
astronomy
Ljudje smo se od nekdaj spraševali, od kod smo in kam gremo. V tem pogovoru bomo razkrili, kako astronomi vidimo začetke nastanka galaksij in kako preučujemo lastnosti temne snovi, ki močno vpliva na razvoj našega Vesolja.
Leto:
2018
Vir:
videolectures.net
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Oznake:
star formation;imaging spectroscopy;high red-shift galaxies;
We present the first statistical investigation of spatially resolved emission-line properties in a sample of 63 low-mass galaxies at 4 ≤ z < 10 using James Webb Space Telescope (JWST)/NIRSpec Micro Shutter Assembly (MSA) data from the JWST Advanced Deep Extragalactic (JADES) survey, focusing on deep ...
Leto:
2024
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
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Oznake:
galaksije;spektroskopija;galaxies;spectroscopy;
We analyse James Webb Space Telescope (JWST) Near Infrared Imager and Slitless Spectrograph (NIRISS) and Near Infrared Spectrograph (NIRSpec) spectroscopic observations in the Abell 2744 galaxy cluster field. From approximately 120 candidates, we identify 12 objects with at least two prominent emiss ...
Leto:
2025
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
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Oznake:
galaksije;rdeči premik;nastanek zvezd;galaxies;high-redshift;star formation;
The recent discovery of five massive stellar clusters at ▫$z =9.625$▫ in the Cosmic Gems galaxy has raised the question about the formation mechanism of star clusters in the first 500 Myr after the Big Bang. We inferred the total stellar mass in clusters by normalizing and integrating the stellar cl ...
Leto:
2026
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
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Oznake:
galaksije;gravitacijsko lečenje;rdeči premik;zvezdne kopice;nastanek zvezd;galaxies;gravitational lensing;redshift;star clusters;star formation;
We present JWST/NIRSpec integral field spectroscopy of the Cosmic Gems arc, strongly magnified by the galaxy cluster SPT-CL J0615-5746. Six-hour integration using NIRSpec prism spectroscopy (resolution ▫$R \simeq 30-300$▫ covering the spectral range ▫$0.8-5.3\ \mu$▫m, covering the spectral range ▫$0 ...
Leto:
2026
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
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Oznake:
astrofizika;galaksije;razvoj galaksij;zgodnje vesolje;astrophysics;galaxies;galaxy evolution;early universe;
During the second half of Cycle 1 of the James Webb Space Telescope (JWST), we conducted the Parallel Application of Slitless Spectroscopy to Analyze Galaxy Evolution (PASSAGE) program. PASSAGE received the largest allocation of JWST observing time in Cycle 1, 591 hr of NIRISS observations to obtain ...
Leto:
2025
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Magistrsko delo
Oznake:
cosmology;cosmic microwave background;microwave absorbers;3D-printing;surface structures;effective medium theory;
Observations of the cosmic microwave background polarization are an important field in cosmology. These observations, conducted both from Earth and space, deal with extremely weak signals that require very precise detectors. Microwave absorbers are used to cover the supporting structures of the tele ...
Leto:
2025
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
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Oznake:
galaxies formation;star formation;high-redshift galaxies;
We present an analysis of the galaxy merger rate in the redshift range 4.0 < z < 9.0 (i.e. about 1.5 to 0.5 Gyr after the big bang) based on visually identified galaxy mergers from morphological parameter analysis. Our data set is based on high-resolution NIRCam JWST data (a combination of F150W and ...
Leto:
2024
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
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Oznake:
astrofizika;jate galaksij;astrophysics;galaxy clusters;
Deep JWST imaging of the massive galaxy cluster MACS0417.5−1154, at redshift z = 0.443, reveals a huge population of globular clusters (GCs) and ultracompact dwarfs (UCDs) primarily distributed around its single central giant brightest cluster galaxy (BCG). We present Near-Infrared Camera (NIRCam)/s ...
Leto:
2025
Vir:
Fakulteta za matematiko in fiziko (UL FMF)