Discovery of new dwarf galaxies around NGC4631 with Subaru/Hyper Suprime-Cam

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Crosstalk Analysis of New CCDs of Suprime-Cam

The detectors of Suprime-Cam were replaced in 2008/07 to full-depleted back illuminated CCDs [1]. The new CCDs show a crosstalk features between channels (Figure 1 top). Such crosstalk was reported in multichannel CCDs in other observatories [2,3,4,5,6]. In Suprime-Cam, one of the three crosstalk shadows moves parallel to the source. Default dithering sequence of Suprime-Cam does not change the...

متن کامل

A Suprime - Cam study of the stellar population of Ursa Major I dwarf spheroidal galaxy ⋆

We present deep and wide V, I CCD photometry of Ursa Major I (UMa I) dwarf spheroidal galaxy (dSph) in Local Group. The images of the galaxy were taken by Subaru/Suprime-Cam wide field camera, covering a field of 34 ′ × 27 ′ located at the centre of the galaxy. Colour-magnitude diagram (CMD) of the UMa I dSph shows a steep and narrow red giant branch (RGB), blue and red horizontal branch (HB), ...

متن کامل

Redshifts of Galaxies around Arp 220 and Serendipitous Discovery of Three Star-forming Dwarf Galaxies at Redshift

We present redshift measurements of four faint galaxies around the archetypal ultraluminous infrared galaxy Arp 220. These galaxies have significantly higher redshifts (z ∼ 0.036 – 0.091) than that of Arp 220 (z ≃ 0.018). Therefore, we conclude that they are background objects not physically related to Arp 220. Three of these faint galaxies located to the south of Arp 220 are a group of galaxie...

متن کامل

Discovery of Ultra-Compact Dwarf Galaxies in the Virgo Cluster

We have discovered nine ultra-compact dwarf galaxies (UCDs) in the Virgo Cluster, extending samples of these objects outside the Fornax Cluster. Using the 2dF multi-fiber spectrograph on the Anglo-Australian Telescope, the new Virgo members were found among 1500 color-selected, star-like targets with 16.0 < bj < 20.2 in a two-degree diameter field centered on M87 (NGC4486). Institute for Geophy...

متن کامل

The Discovery of the Smallest Blue Compact Dwarf Galaxies

In a spectroscopic survey of the Fornax cluster to BJ = 17.5 using the FLAIR spectrograph on the UK Schmidt Telescope we have discovered seven new compact dwarf cluster members. These were previously thought to be giant background spirals. These new members are among the most compact, high surface brightness dwarf galaxies known with absolute magnitudes of MB ≈ −14 and scale lengths of α ≈ 400 ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Proceedings of the International Astronomical Union

سال: 2015

ISSN: 1743-9213,1743-9221

DOI: 10.1017/s1743921315007115