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Small jets in radio‐loud hot DOGs
Lonsdale, C.J.,Whittle, M.,Trapp, A.,Patil, P.,Lonsdale, C.J.,Thorp, R.,Lacy, M.,Kimball, A. E.,Blain, A.,Jones, S.,Kim, M. WILEY‐VCH Verlag 2016 Astronomische Nachrichten Vol.337 No.1
<P>We address the impact of young radio jets on the ISM and star formation in a sample of radiatively efficient, highly obscured, radio AGN with look back times that place them near the peak of the galaxy and BH building era, z similar to 1-3. By selecting systems with a high mid-infrared (MIR) luminosity we aim to identify radiatively efficient ('quasar-mode' or 'radiative-mode') AGN in a peak fueling phase, and by selecting compact radio sources we favor young or re-generated radio jets which are confined within the hosts. By selecting AGN which are very red through the optical-MIR we favor highly obscured systems likely to have been recently merger-triggered and still in the pre-blow-out phase of AGN feedback into the surrounding ISM. ALMA imaging at 345 GHz of 49 sources has revealed that they are accretion dominated, relative to star formation, with luminosities reaching 10(14) L-circle dot. Extensive VLA imaging at 8-10 GHz in both A-array and B-array for 155 sources reveals that the majority of these powerful radio systems are compact on < 2-5 kpc scales while some have resolved structures on 3-25 kpc scales, and a small number have giant radio lobes on hundreds of kpc scales. The majority of the GHz range radio SEDs are typical of optically thin synchrotron, however for the 34 sources with data at more than 2 frequencies, 40% are likely to be CSS, GPS, or HFP sources. VLBA imaging of 62 sources reveals varied morphologies, from unresolved sources to complex multicomponent 1-10 mas scale structures. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim</P>
Lonsdale, Carol J.,Lacy, M.,Kimball, A. E.,Blain, A.,Whittle, M.,Wilkes, B.,Stern, D.,Condon, J.,Kim, M.,Assef, R. J.,Tsai, C.-W.,Efstathiou, A.,Jones, S.,Eisenhardt, P.,Bridge, C.,Wu, J.,Lonsdale, Co IOP Publishing 2015 The Astrophysical journal Vol.813 No.1
<P>We present Atacama Large Millimeter/submillimeter Array (ALMA) 870 mu m (345 GHz) data for 49 high-redshift (0.47 < z < 2.85), luminous (11.7 < log(L-bol/L-circle dot) < 14.2) radio-powerful active galactic nuclei (AGNs), obtained to constrain cool dust emission from starbursts concurrent with highly obscured radiative-mode black hole (BH) accretion in massive galaxies that possess a small radio jet. The sample was selected from the Wide-field Infrared Survey Explorer with extremely steep (red) mid-infrared colors and with compact radio emission from NVSS/FIRST. Twenty-six sources are detected at 870 mu m, and we find that the sample has large mid- to far-infrared luminosity ratios, consistent with a dominant and highly obscured quasar. The rest-frame 3 GHz radio powers are 24.7 < log P-3.0 GHz/W Hz(-1)) < 27.3, and all sources are radio-intermediate or radio-loud. BH mass estimates are 7.7 < log(M-BH/M-circle dot) < 10.2. The rest-frame 1-5 mu m spectral energy distributions are very similar to the 'Hot DOGs' (hot dust-obscured galaxies), and steeper (redder) than almost any other known extragalactic sources. ISM masses estimated for the ALMA-detected sources are 9.9 < log (M-ISM/M-circle dot) < 11.75 assuming a dust temperature of 30 K. The cool dust emission is consistent with star formation rates reaching several thousand M-circle dot yr(-1), depending on the assumed dust temperature, but we cannot rule out the alternative that the AGN powers all the emission in some cases. Our best constrained source has radiative transfer solutions with approximately equal contributions from an obscured AGN and a young (10-15 Myr) compact starburst.</P>
DUST-OBSCURED RADIO AGNS FROM THE WISE SURVEY
Kim, Minjin,Lonsdale, Carol J.,Lacy, Mark,Kimball, Amy,Condon, Jim The Korean Astronomical Society 2012 天文學論叢 Vol.27 No.4
Feedback from accreting BH (AGN) is thought to be responsible for the co-evolution of BHs and galaxies. It is likely to be prominent in the most luminous dust-obscured quasars, particularly those containing radio sources too luminous to be powered by starbursts. In order to investigate the feedback mechanism in detail, we select a unique sample containing ~ 200 of the most luminous obscured QSOs by cross-matching the WISE catalog with the FIRST and NVSS radio surveys. We present overall statistics for the observed range of colors and radio/mid-IR flux density ratio. We also present our efforts to understand the physical and evolutionary nature of these extreme feedback candidates using various telescopes such as Magellan, SOAR, Herschel, and ALMA.
The environments of luminous radio-WISE selected infrared galaxies
Penney, J I,Blain, A W,Wylezalek, D,Hatch, N A,Lonsdale, C,Kimball, A,Assef, R J,Condon, J J,Eisenhardt, P R M,Jones, S F,Kim, M,Lacy, M,Muldrew, S I,Petty, S,Sajina, A,Silva, A,Stern, D,Diaz-Santos, Oxford University Press 2019 MONTHLY NOTICES- ROYAL ASTRONOMICAL SOCIETY Vol.483 No.1
Late presentation of metastatic smooth muscle neoplasm of the uterus with low malignant potential
Gioia N. Canciani,Nikolaos Burbos,Timothy J. Duncan,Ray Lonsdale,Joaquin J. Nieto 대한부인종양학회 2012 Journal of Gynecologic Oncology Vol.23 No.1
A 48-year-old woman underwent total abdominal hysterectomy with conservation of the ovaries and tubes. Histology showed a well-circumscribed smooth muscle tumor with foci of degeneration (including infarct-type necrosis) but no coagulative tumor cell necrosis and only mild focal cytological atypia. She presented, 24 years later with shortness of breath and abdominal distension and underwent bilateral salpingo-oophorectomy, appendectomy, omental biopsy and para-aortic lymph node sampling. Histology showed bilateral ovarian smooth muscle tumors with no coagulative tumor cell necrosis or significant cellular atypia. The cells were mitotically active. The tumors in both ovaries were most likely secondary to the previous uterine smooth muscle neoplasm. To our knowledge, this case is the first in the literature to describe a benign cellular leiomyoma that subsequently behaved as a smooth muscle tumor of uncertain malignant potential, which recurred 24 years after the initial diagnosis.