Verbesserung der Differentialdiagnose pigmentierter Veränderungen am Augenhintergrund mit Hilfe der multispektralen Bildanalyse*

K, Zirm; Zirm, M.

doi:10.1055/s-2008-1054750

Cited by 5 publications

(9 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…At the redshift of the protocluster the Balmer and 4000 Å break falls within the J 110 filter, therefore we can make a simple colour cut to select candidate red protocluster galaxies. Zirm et al (2008) show that there is a significant overdensity of galaxies in this protocluster field with colours 1.1 < J 110 – H 160 < 2.1. Using the same colour cut we identify seven red galaxies (galaxies 1, 2, 4, 12, 13, 14 and 16), two of which are also Hα emitters.…”

Section: Selecting Protocluster Galaxiesmentioning

confidence: 78%

“…The protocluster was also observed with Near Infrared Camera and Multi‐Object Spectrometer (NICMOS) camera 3 on HST for three orbits though each of the F110W ( J 110 ) and F160W ( H 160 ) filters. Further discussion of the NICMOS observations can be found in Zirm et al (2008).…”

Section: Observationsmentioning

confidence: 99%

“…1; Pentericci et al 1997; Miley et al 2006; Overzier, Miley & Ford 2007), also known as the ‘Spiderweb galaxy’, is one of the most massive galaxies at z ∼ 2 (Seymour et al 2007). It lies in a protocluster identified by an overdensity of Lyα and Hα emitters, extremely red objects and sub‐millimetre (sub‐mm) bright galaxies (Pentericci et al 2000; Stevens et al 2003; Kurk et al 2004; Kodama et al 2007; Zirm et al 2008). The radio galaxy is 2 mag brighter in Ks than any other protocluster galaxy candidate within a 1.5 Mpc physical radius (Kurk et al 2004).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The growth and assembly of a massive galaxy at

Hatch

Overzier

Kurk

et al. 2009

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

We study the stellar mass assembly of the Spiderweb galaxy (MRC 1138−262), a massive z= 2.2 radio galaxy in a protocluster and the probable progenitor of a brightest cluster galaxy. Nearby protocluster galaxies are identified and their properties are determined by fitting stellar population models to their rest‐frame ultraviolet to optical spectral energy distributions. We find that within 150 kpc of the radio galaxy the stellar mass is centrally concentrated in the radio galaxy, yet most of the dust‐uncorrected, instantaneous star formation occurs in the surrounding low‐mass satellite galaxies. We predict that most of the galaxies within 150 kpc of the radio galaxy will merge with the central radio galaxy by z= 0, increasing its stellar mass by up to a factor of ≃2. However, it will take several hundred Myr for the first mergers to occur, by which time the large star formation rates are likely to have exhausted the gas reservoirs in the satellite galaxies. The tidal radii of the satellite galaxies are small, suggesting that stars and gas are being stripped and deposited at distances of tens of kpc from the central radio galaxy. These stripped stars may become intracluster stars or form an extended stellar halo around the radio galaxy, such as those observed around cD galaxies in cluster cores.

show abstract

Section: Selecting Protocluster Galaxiesmentioning

confidence: 78%

Section: Observationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The growth and assembly of a massive galaxy at

Hatch

Overzier

Kurk

et al. 2009

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

show abstract

“…It is surrounded by a diffuse UV halo which is evidence for in situ star formation outside the main RG (Hatch et al 2008). Furthermore, the field has been shown to harbour overdensities in both Lyα and Hα emitting galaxies, extremely red objects (EROs), X‐ray emitters and submillimetre bright galaxies (Pentericci et al 2000; Stevens et al 2003; Kurk et al 2004b,a; Croft et al 2005; K07; Zirm et al 2008). Kurk et al (2004b) has also shown that the EROs and Hα emitting galaxies are located closer to the RG than the bluer star‐forming galaxies.…”

Section: Discussionmentioning

confidence: 99%

“…Zirm et al (2008) have shown that the 1138 system contains red galaxies, some of which might be quiescent. However, the red sequence is still in the stages of formation and has not been properly established yet.…”

Section: Discussionmentioning

confidence: 99%

A galaxy populations study of a radio-selected protocluster atz∼ 3.1

Kuiper¹,

Hatch²,

Röttgering³

et al. 2010

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

We present a population study of several types of galaxies within the protocluster surrounding the radio galaxy MRC 0316−257 at z∼ 3.1. In addition to the known population of Lyα emitters and [O iii] emitters, we use colour‐selection techniques to identify protocluster candidates that are Lyman break galaxies (LBG) and Balmer break galaxies (BBGs). The radio galaxy field contains an excess of LBG candidates, with a surface density 1.6 ± 0.3 times larger than found for comparable blank fields. This surface overdensity corresponds to an LBG volume overdensity of ∼8 ± 4. The BBG photometric redshift distribution peaks at the protocluster's redshift, but we detect no significant surface overdensity of BBG. This is not surprising because a volume overdensity similar to the LBGs would have resulted in a surface density of ∼1.2 that found in the blank field. This could not have been detected in our sample. Masses and star formation rates of the candidate protocluster galaxies are determined using spectral energy distribution fitting. These properties are not significantly different from those of field galaxies. The galaxies with the highest masses and star formation rates are located near the radio galaxy, indicating that the protocluster environment influences galaxy evolution at z∼ 3. We conclude that the protocluster around MRC 0316−257 is still in the early stages of formation.

show abstract

Analyse und Langzeitbeobachtung nach chirurgischer Therapie bei Patienten mit Iristumoren

Kühn

Petersen

Strobel

2013

Klin Monatsbl Augenheilkd

View full text Add to dashboard Cite

A reliable diagnosis is only possible after histological examination. The analysed parameters can only give indications for the dignity of the tumour. The strategy of the ophthalmic department of the University Hospital of Jena to remove a tumour of uncertain dignity at an early state makes sense, because there are few postoperative complications, few patients complain about subjective problems and the chances for achieving good visual acuity are high.

show abstract

Verbesserung der Differentialdiagnose pigmentierter Veränderungen am Augenhintergrund mit Hilfe der multispektralen Bildanalyse*

Cited by 5 publications

References 1 publication

The growth and assembly of a massive galaxy at

The growth and assembly of a massive galaxy at

A galaxy populations study of a radio-selected protocluster atz∼ 3.1

Analyse und Langzeitbeobachtung nach chirurgischer Therapie bei Patienten mit Iristumoren

Contact Info

Product

Resources

About