Results 31 to 40 of about 8,619 (182)

THE OPACITY OF SPIRAL GALAXY DISKS [PDF]

open access: yes, 2007
The opacity of foreground spiral disks can be probed from the number of distant galaxies seen through them. To calibrate this number for effects other than the dust extinction, Gonzalez et al. (1998) developed the "Synthetic Field Method". A synthetic field is an extincted Hubble Deep Field added to the science field.
Holwerda, Benne W.   +3 more
openaire   +1 more source

GASP XXIX-unwinding the arms of spiral galaxies via ram-pressure stripping [PDF]

open access: yes, 2020
We present the first study of the effect of ram pressure ‘unwinding’ the spiral arms of cluster galaxies. We study 11 ram-pressure stripped galaxies from GASP (GAs Stripping Phenomena in galaxies) in which, in addition to more commonly observed ...
Tonnesen, Stephanie   +17 more
core   +1 more source

Spiral Galaxies

open access: yes, 2023
Our vision of galaxies has changed significantly since the era of large galaxy surveys like the Sloan, which gave us extensive statistics with millions of galaxies. The Hubble sequence classification described in Chapter 1 still remains very widely used but has been enriched with broad categories based on color that indicate the recent formation of ...
openaire   +3 more sources

The local galaxy density and the bars of spiral galaxies

open access: yesThe Astrophysical Journal, 1993
23 pages, LaTeX, SISSA Ref.
GIURICIN G   +3 more
openaire   +3 more sources

Spiral Structure of Our Galaxy and of Other Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1970
Time and again Dr. B. Bok publishes his reviews on the state of optical searches of the spiral arms in our Galaxy. A great optimist at the beginning, concerning the agreement of different results, he became later more critical in his conclusions. But in his paper of 1967 he claims anew, as well established, that we can trace the spiral arms up to a ...
openaire   +1 more source

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

open access: yesAdvanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino   +7 more
wiley   +1 more source

Modelling the SEDs of spiral galaxies [PDF]

open access: yesEAS Publications Series, 2008
invited lecture; to appear in Proceedings of the lectures given at the Les Houche Winter School "Astronomy in the submillimeter and far infrared domains with the Herschel Space Observatory"
Popescu, C., Tuffs, R.
openaire   +3 more sources

Nuclear stellar disks in spiral galaxies [PDF]

open access: yes, 2002
We report the discovery of a nuclear stellar disk in 3 early-type spirals, namely NGC 1425, NGC 3898 and NGC 4698, revealed by WFPC2/F606W images out of a sample of 38 spiral galaxies, selected from the HST Data Archive.
PIZZELLA, ALESSANDRO   +6 more
core   +1 more source

From Flow to Function: Using Different Static Mixers to Fabricate Microarchitected Materials Via Chaotic Printing

open access: yesAdvanced Science, EarlyView.
Complex microarchitectures emerge from simple flow‐driven transformations as static mixers iteratively reorient and split material domains. Coupled with diverse deposition strategies, chaotic printing provides an accessible platform for fabricating architected materials that support biologically and chemically relevant processes. ABSTRACT Nature builds
Edna Johana Bolívar‐Monsalve   +7 more
wiley   +1 more source

The mass distribution in Spiral galaxies [PDF]

open access: yesEAS Publications Series, 2009
In the past years a wealth of observations has unraveled the structural properties of the Dark and Luminous mass distribution in spirals. These have pointed out to an intriguing scenario not easily explained by present theories of galaxy formation. The investigation of individual and coadded objects has shown that the spiral rotation curves follow ...
Salucci, P., Martins, C. F.
openaire   +2 more sources

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